Total Allowable Error Table
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Total Allowable Error Table
| Analyte | Fluid | Method | Source | Target Value |
|---|---|---|---|---|
| 17-Hydroxyprogesterone | Serum | ±2.0 nmol/L or 20% if > 10.0 nmol/L | 5 RCPA | |
| 3-Methoxytyramine (3MT) | Urine | ±15 nmol/L or ±15% if > 100 nmol/L | 5 RCPA | |
| 4-hydroxy-3-methoxy-mandelate, (HMMA) | Urine | ±6 umol/L or 15% if > 40 umol/L | 5 RCPA | |
| 5HIAA | Urine | ±8 umol/L or 20% if > 40 umol/L | 5 RCPA | |
| a1-Antitrypsin (α1AT) | Serum | ±0.10 g/L or 20% if > 0.5 g/L | 5 RCPA, 6 API | |
| Acetaminophen (Paracetamol) | Serum | ±15% or 3 µg/mL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Acetaminophen (Paracetamol) | Serum | ±15% or 2.5 µg/mL (greater) | 4 AAB | |
| Acetaminophen (Paracetamol) | Serum | ±3.0 mg/L or 10% if > 30.0 mg/L | 5 RCPA | |
| Activated Clotting Time (ACT) | WB | ±20% | 2 WSLH | |
| Adrenaline | Urine | ±30 nmol/L or 30% if > 100 nmol/L | 5 RCPA | |
| Adrenocorticotropic Hormone (ACTH) | Serum | ±2.0 pmol/L or 10% if > 20 pmol/L | 5 RCPA | |
| Alanine Aminotransferase (ALT) | Serum | ±15% or 6 U/L (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Alanine Aminotransferase (ALT) | Serum | ±20% | 4 AAB | |
| Alanine Aminotransferase (ALT) | Serum | ±5 U/L or 12% if > 40 U/L | 5 RCPA | |
| Albumin | Serum | ±8% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Albumin | Body Fluids | ±10% | 2 WSLH, 6 API | |
| Albumin | Serum | ±10% | 4 AAB | |
| Albumin | Serum, Body Fluids | ±2.0 g/L or 6% if > 33 g/L | 5 RCPA | |
| Albumin | CSF | ±0.02 g/L or 20% if > 0.1 g/L | 5 RCPA | |
| Albumin | Urine | ±4.0 mg/L or 20% if > 20.0 mg/L | 5 RCPA | |
| Alcohol (ETOH) | Serum | ±20% | 1 CLIA, 2 WSLH, 6 API | |
| Alcohol (ETOH) | Serum | ±25% | 4 AAB | |
| Alcohol (ETOH) | Serum | ±2.0 mmol/L or 10% if > 20 mmol/L | 5 RCPA | |
| Aldosterone | Serum | ±24 pmol/L or 15% if > 160 pmol/L | 5 RCPA | |
| Alkaline Phosphatase (ALP) | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Alkaline Phosphatase (ALP) | Serum | ±30% | 4 AAB | |
| Alkaline Phosphatase (ALP) | Serum | ±15 U/L or 12% if > 125 U/L | 5 RCPA | |
| Alkaline Phosphatase (ALP) | Body Fluids | ±30% | 6 API | |
| Alpha 1 Antitrypsin | Serum | ±20% | 1 CLIA | |
| Alpha-fetoprotein (AFP) | Serum | ±20% | 1 CLIA, 2 WSLH, 6 API | |
| Alpha-fetoprotein (AFP) | Serum | ±2 kIU/L or 12% if > 17 kIU/L | 5 RCPA | |
| Aluminum | Serum | ±0.08 umol/L or 20% if > 0.40 umol/L | 5 RCPA | |
| Amikacin | Serum | ±3 SD or 10% (greater) | 3 CAP | |
| Amikacin | Serum | ±2 mg/L or 10% if > 19.9 mg/L | 5 RCPA | |
| Aminolaevulinic Acid (ALA) | Urine | ±8 umol/L or 25% if > 32 umol/L | 5 RCPA | |
| Amiodarone | Serum | ±0.1 mg/L or 10% if > 1.3 mg/L | 5 RCPA | |
| Amitriptyline | Serum | ±3.0 ug/L or 10% if > 28.0 ug/L | 5 RCPA | |
| Ammonia | Serum | ±5% or 10 µmol/L (greater) | 4 AAB | |
| Ammonia | Serum | ±5 umol/L or 10% if > 50 umol/L | 5 RCPA | |
| Amylase | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Amylase | Serum | ±30% | 4 AAB | |
| Amylase | Body Fluids, Urine | ±30% | 2 WSLH, 6 API | |
| Amylase | Serum | ±10 U/L or 10% if > 100 U/L | 5 RCPA | |
| Amylase | Body Fluids | ±20 U/L or 20% if > 100 U/L | 5 RCPA | |
| Androstenedione | Serum | ±1.5 nmol/L or 15% if > 10 nmol/L | 5 RCPA | |
| Angiotensin Converting Enzyme (ACE) | Serum | ±1.0 or 10% if > 10.0 U/L | 5 RCPA | |
| Antinuclear antibody (ANA) | Serum | ±2 dilutions or positive or negative | 1 CLIA | |
| Antistreptolysin O (ASO) | Serum | ±2 dilutions or positive or negative | 1 CLIA | |
| Antistreptolysin O (ASO) | Serum | ±3SD or ±25 IU/mL (greater) | 6 API | |
| Antithrombin, Functional (AT) | Plasma | ±10% or 25% if > 40% | 5 RCPA | |
| Anti-CCP | Serum | ±3SD or ±5 U/mL (greater) | 6 API | |
| Anti HIV (Human Immunodeficiency virus) | Serum | Reactive (positive) or nonreactive (negative) | 1 CLIA | |
| Anti Xa | Plasma | ±25 ng/mL or 25% if > 100 ng/mL | 5 RCPA | |
| Apolipoprotein A1 | Serum | ±0.2 g/L or 10% if > 2.0 g/L | 5 RCPA | |
| Apolipoprotein B | Serum | ±0.2 g/L or 10% if > 2.0 g/L | 5 RCPA | |
| Arsenic, Total | Urine | ±50 nmol/L or 10% if > 500 nmol/L | 5 RCPA | |
| Arsenic, Total | WB | ±10 nmol/L or 10% if > 100 nmol/L | 5 RCPA | |
| Aspartate Aminotransferase (AST) | Serum | ±15% or 6 U/L (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Aspartate Aminotransferase (AST) | Serum | ±20% | 4 AAB | |
| Aspartate Aminotransferase (AST) | Serum | ±5 U/L or 12% if > 40 U/L | 5 RCPA | |
| Basophile, count | WB | ±3% or 30% if > 10% | 5 RCPA | |
| Beta-2 microglobulin (B2M) | Serum | ±0.2 mg/L or 10% if > 2.0 mg/L | 5 RCPA | |
| Beta Carotene | Serum | ±0.4 umol/L or 25% if > 2.0 umol/L | 5 RCPA | |
| Beta-Hydroxybutyrate | Serum | ±3SD or ±0.2 mmol/L (greater) | 6 API | |
| Bile Acids, Total | Serum | ±4 umol/L or 10% if > 40 umol/L | 5 RCPA | |
| Bilirubin, Direct or Conjugated (DBIL) | Serum | ±0.4 mg/dL or 20% (greater) | 2 WSLH, 3 CAP, 6 API | |
| Bilirubin, Direct or Conjugated (DBIL) | Serum | ±3 umol/L or 20% if > 15 umol/L | 5 RCPA | |
| Bilirubin, Neonatal (TBIL) | Serum | ±20% or 0.4 mg/dL (greater) | 4 AAB | |
| Bilirubin, Neonatal (TBIL) | Serum | ±8 umol/L or 10% if > 80 umol/L | 5 RCPA | |
| Bilirubin, Total | Serum | ±20% or 0.4 mg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Bilirubin, Total | Serum | ±3 umol/L or 12% if > 25 umol/L | 5 RCPA | |
| Bilirubin, Total | CSF | ±0.12 umol/L or 20% if > 0.6 umol/L | 5 RCPA | |
| Bilirubin, Total | Body Fluids | ±0.4 mg/dL or ±20% (greater) | 6 API | |
| B-natriuretic Peptide (BNP) | Serum | ±30% | 1 CLIA, 2 WSLH, 6 API | |
| B-natriuretic Peptide (BNP) | Serum | ±2 SD or 25% (greater) | 4 AAB | |
| B-natriuretic Peptide (BNP) | Serum | ±20 ng/L or 20% if > 100 ng/L | 5 RCPA | |
| B-natriuretic Peptide, Pro (proBNP) | Serum | ±30% | 2 WSLH, 6 API | |
| B-natriuretic Peptide, Pro (proBNP) | Serum | ±25% | 4 AAB | |
| B-natriuretic Peptide, Pro (proBNP) | Serum | ±25 ng/L or 20% if > 125 ng/L | 5 RCPA | |
| C Peptide | Serum | ±0.15 nmol/L or 12% if > 1.25 nmol/L | 5 RCPA | |
| C1 Inhibitor, Esterase (C1inh) | Serum | ±0.03 g/L or 15% if > ±0.2 g/L | 5 RCPA | |
| Cadmium | Urine, WB | ±1 mg/dL or 15% | 2 WSLH | |
| Cadmium | Urine, WB | ±3 nmol/L or 15% if > 20 nmol/L | 5 RCPA | |
| Caffeine | Serum | ±3 SD or 10% (greater) | 3 CAP, 6 API | |
| Calcitonin | Serum | ±2 ng/L or 10% if > 20 ng/L | 5 RCPA | |
| Calcium - Total | Serum | ±1.0 mg/dL | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Calcium - Total | Urine | ±10% or 1 mg/dL | 2 WSLH | |
| Calcium - Total | Serum | ±0.1 mmol/L or 4% if > 2.5 mmol/L | 5 RCPA | |
| Calcium - Total | Urine | ±0.2 mmol/L or 10% if > 2.0 mmol/L | 5 RCPA | |
| Calcium - Total | Body Fluids | ±1 mg/dL | 6 API | |
| Calcium, Ionized | Serum | ±0.13 mmol/L | 2 WSLH | |
| Calcium, Ionized | Serum | ±0.04 mmol/L or 4% if > 1.00 mmol/L | 5 RCPA | |
| Calcium, Ionized | Serum | ±3 SD or ±0.05 mmol/L (greater) | 6 API | |
| Cancer Antigen (CA) 125 | Serum | ±6 kU/L or 12% if > 50 kU/L | 5 RCPA | |
| Cancer Antigen (CA) 125 | Serum | ±20% | 6 API | |
| Cancer Antigen (CA) 15-3 | Serum | ±2 SD or 30% (greater) | 4 AAB | |
| Cancer Antigen (CA) 15-3 | Serum | ±3 kU/L or 10% if > 30 kU/L | 5 RCPA | |
| Cancer Antigen (CA) 19-9 | Serum | ±2 SD or 30% (greater) | 4 AAB | |
| Cancer Antigen (CA) 19-9 | Serum | ±6 kU/L or 15% if > 40 kU/L | 5 RCPA | |
| Cancer Antigen (CA) 19-9 | Body Fluids | ±12 kU/L or 30% if > 40 kU/L | 5 RCPA | |
| Cancer Antigen (CA) 27.29 | Serum | ±2 SD or 30% (greater) | 4 AAB | |
| Carbamazepine | Serum | ±20% or 1.0 µg/mL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Carbamazepine | Serum | ±25% | 4 AAB | |
| Carbamazepine | Serum | ±0.5 mg/L or 10% if > 4.7 mg/L | 5 RCPA | |
| Carbamazepine, Free | Serum | ±3 SD or 10% (greater) | 3 CAP | |
| Carcinoembryonic Antigen (CEA) | Serum | ±15% or 1 ng/mL (greater) | 1 CLIA, 2 WSLH, 6 API | |
| Carcinoembryonic Antigen (CEA) | Serum | ±1.2 ng/mL or 20% | 4 AAB | |
| Carcinoembryonic Antigen (CEA) | Serum | ±0.6 ug/L or 12% if > 5 ug/L | 5 RCPA | |
| Carcinoembryonic Antigen (CEA) | Body Fluids | ±1.2 ug/L or 24% if > 5.0 ug/L | 5 RCPA | |
| Carotenoids, Total | Serum | ±0.8 umol/L or 25% if > 4.0 umol/L | 5 RCPA | |
| CD3+ Alpha-beta% | WB | ±4.5% to 15% if > 30% | 5 RCPA | |
| CD3+% | WB | ±1.5% or 5% if > 30% | 5 RCPA | |
| CD3x109/L | WB | ±0.02x109/L or 20% if > 0.1x109/L | 5 RCPA | |
| CD4x109/L | WB | ±0.02x109/L or 20% if > 0.1x109/L | 5 RCPA | |
| CD3+/CD4+% | WB | ±3% or 7.5% if > 40% | 5 RCPA | |
| CD3+/CD8+% | WB | ±1.5% or 10% if > 15% | 5 RCPA | |
| CD3-CD16+% | WB | ±2% or 20% if > 10% | 5 RCPA | |
| CD3-CD56+% | WB | ±2% or 20% if > 10% | 5 RCPA | |
| CD3-CD16+56+% | WB | ±2% or 20% if > 10% | 5 RCPA | |
| CD8x109/L | WB | ±0.02x109/L or 20% if > 0.1x109/L | 5 RCPA | |
| CD19+% | WB | ±2% or 20% if > 10% | 5 RCPA | |
| CD19x109/L | WB | ±0.02x109/L or 20% if > 0.1x109/L | 5 RCPA | |
| CD34+, % | WB | ±0.05% or 25% if > 0.3% | 5 RCPA | |
| CD34+, Total | WB | ±5 uL or 25% if > 20 uL | 5 RCPA | |
| Ceruloplasmin | Serum | ±0.03 g/L or 15% if > 0.2 g/L | 5 RCPA | |
| Chloride | Serum | ±5% | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Chloride | Urine | ±10% | 2 WSLH | |
| Chloride | Serum | ±3 mmol/L or 3% if > 100 mmol/L | 5 RCPA | |
| Chloride | Sweat | ±2.0 mmol/L or 5% if > 40 mmol/L | 5 RCPA | |
| Chloride | Urine | ±4.0 mmol/L or 10% if > 40 mmol/L | 5 RCPA | |
| Chloride | Body Fluids | ±2 SD or ±5% (greater) | 6 API | |
| Cholesterol, HDL | Serum | ±20% or 6 mg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP | |
| Cholesterol, HDL | Serum | ±30% | 4 AAB | |
| Cholesterol, HDL | Serum | ±0.1 mmol/L or 12% if > 0.8 mmol/L | 5 RCPA | |
| Cholesterol, LDL | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP | |
| Cholesterol, LDL | Serum | ±30% | 4 AAB | |
| Cholesterol, LDL | Serum | ±0.2 mmol/L or 10% if > 2.0 mmol/L | 5 RCPA | |
| Cholesterol, Total | Serum | ±10% | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Cholesterol, Total | Body Fluids | ±10% | 2 WSLH | |
| Cholesterol, Total | Serum | ±0.3 mmol/L or 6% if > 5.0 mmol/L | 5 RCPA | |
| Cholesterol, Total | Body Fluids | ±0.3 mmol/L or 12% if > 2.5 mmol/L | 5 RCPA | |
| Cholinesterase | Serum | ±500 U/L or 10% if > 5000 U/L | 5 RCPA | |
| Chromium | Serum, Urine, WB | ±3 nmol/L or 12% if > 25 nmol/L | 5 RCPA | |
| Clozapine | Serum | ±12 ug/L or 12% if > 100 ug/L | 5 RCPA | |
| CO2, Carbon Dioxide (Bicarbonate) | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| CO2, Carbon Dioxide (Bicarbonate) | Serum | ±2.0 mmol/L or 10% if > 20.0 mmol/L | 5 RCPA | |
| Cobalt | Plasma | ±1 nmol/L or 10% if > 10 nmol/L | 5 RCPA | |
| Cobalt | Urine | ±2 nmol/L or 10% if > 20 nmol/L | 5 RCPA | |
| Cobalt | WB | ±2 nmol/L or 10% if > 10 nmol/L | 5 RCPA | |
| Compatibility testing | Serum | 100% accuracy | 1 CLIA | |
| Complement C3 | Serum | ±15% | 1 CLIA, 6 API | |
| Complement C3 | Serum | ±0.10 g/L or 10% if > 1.0 g/L | 5 RCPA | |
| Complement C4 | Serum | ±20% or 5 mg/dL (greater) | 1 CLIA, 6 API | |
| Complement C4 | Serum | 0.02 g/L or 10% if > 0.2 g/L | 5 RCPA | |
| Conductivity | Sweat | ±2 mmol/L or 5% if > 50 mmol/L | 5 RCPA | |
| Copper | Serum | ±1.6 umol/L or 8% if > 20.0 umol/L | 5 RCPA | |
| Copper | Urine | ±0.05 umol/L or 10% if > 0.50 umol/L | 5 RCPA | |
| Cortisol | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Cortisol | Serum | ±25% | 4 AAB | |
| Cortisol | Serum | ±15 nmol/L or 15% if > 100 nmol/L | 5 RCPA | |
| Cortisol | Urine | ±30 nmol/L or 15% if > 200 nmol/L | 5 RCPA | |
| C-Reactive protein (CRP) | Serum | ±30% or 2 SD (greater) | 4 AAB | |
| C-Reactive protein (CRP) | Serum | ±0.8 mg/L or 20% if > 4.0 mg/L | 5 RCPA | |
| C-Reactive protein (CRP) | Serum | ±2 SD or ±0.3 mg/dL (greater) | 6 API | |
| C-Reactive protein (CRP), High Sensitivity | Serum | ±30% or 1 mg/L or 0.1 mg/dL (greater) | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| C-Reactive protein (CRP), High Sensitivity | Serum | ±0.6 mg/L or 20% if > 3.0 mg/L | 5 RCPA | |
| Creatine Kinase (CK) | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Creatine Kinase (CK) | Serum | ±30% | 4 AAB | |
| Creatine Kinase (CK) | Serum | ±15 U/L or 12% if > 125 U/L | 5 RCPA | |
| Creatine Kinase Isoenzyme (CKMB) | Serum | ±25% or 3 ng/mL (greater) or MB elevated (presence or absence) | 1 CLIA, 2 WSLH, 6 API | |
| Creatine Kinase Isoenzyme (CKMB) | Serum | ±3 U/L or 3 ug/L or 20% if > 15 U/L or 15 ug/L | 5 RCPA | |
| Creatinine | Serum | ±10% or 0.2 mg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Creatinine | Body Fluids, Urine | ±17% or 0.3 mg/dL | 2 WSLH | |
| Creatinine | Serum | ±0.3 mg/dL or 15% (greater) | 4 AAB | |
| Creatinine | Serum, Urine | ±17% | 4 AAB | |
| Creatinine | Serum | ±8.0 umol/L or 8% if > 100 umol/L | 5 RCPA | |
| Creatinine | Body Fluids | ±16.0 umol/L or 16% if > 100 umol/L | 5 RCPA | |
| Creatinine | Urine | ±0.5 mmol/L or 10% if > 5.0 mmol/L | 5 RCPA | |
| Creatinine | Body Fluids | ±0.3 mg/dL or 15% (greater) | 6 API | |
| Creatinine | Urine | ±20% | 6 API | |
| Cyclosporine | Serum | ±10 ug/L or 10% if > 100 ug/L | 5 RCPA | |
| d-Dimer | Plasma | ±15% | 2 WSLH | |
| d-Dimer | Plasma | ±2 SD or 30% (greater) | 4 AAB | |
| d-Dimer | Plasma | automated DD | ±0.25 DD mg/L or 50% if > 0.5 DD mg/L | 5 RCPA |
| d-Dimer | Plasma | automated FEU | ±0.5 FEU mg/L or 50% if > 1.0 FEU mg/L | 5 RCPA |
| DHEA Sulfate | Serum | ±30% or 2 SD (greater) | 4 AAB | |
| DHEA Sulfate | Serum | ±1.2 umol/L or 12% if > 10 umol/L | 5 RCPA | |
| Digoxin | Serum | ±15% or 0.2 ng/mL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Digoxin | Serum | ±0.2 ng/dL or 20% (greater) | 4 AAB | |
| Digoxin | Serum | ±0.2 ug/L or 10% if > 1.6 ug/L | 5 RCPA | |
| Digoxin, Free | Serum | ±3 SD or 10% (greater) | 3 CAP | |
| Dihydropyrimidine dehydrogenase (DPYD) Free | Urine | ±15 nmol/L or 15% if > 80 nmol/L | 5 RCPA | |
| Direct Thrombin Inhibitor, (DTI) | Plasma | ±25 ng/mL or 25% if >100 ng/mL | 5 RCPA | |
| Disopyramide | Serum | ±3 SD or 10% (greater) | 3 CAP | |
| Dopamine | Urine | ±0.2 umol/L or 10% if > 2.0 umol/L | 5 RCPA | |
| Eosinophils, count | WB | ±3% or 30% if > 10% | 5 RCPA | |
| Erythrocyte Sedimentation Rate (ESR) | WB | ±3.0 mm/hr or 30% if > 10 mm/hr | 5 RCPA | |
| Estradiol | Serum | ±30% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Estradiol (Oestradiol) | Serum | ±25 pmol/L or 25% if > 100 pmol/L | 5 RCPA | |
| Estriol, Unconjugated (Oestriol) | Serum | ±0.9 nmol/L or 15% if > 6.0 nmol/L | 5 RCPA | |
| Estriol, Unconjugated | Serum | ±2 SD or + 0.5ng/mL (greater) | 6 API | |
| Ethosuximide | Serum | ±20% | 3 CAP | |
| Ethylene Glycol | Serum | ±25% | 6 API | |
| Factor II, V, VII, IX, X, XI, XII | Plasma | ±3 IU/dL or 30% if > 10 IU/dL | 5 RCPA | |
| Factor VIII:C | Plasma | ±3% or 30% if > 10% | 5 RCPA | |
| Fecal Occult Blood (FOBT) | Stool | ±15 ng/mL or 15% if > 100 ng/mL | 5 RCPA | |
| Ferritin | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Ferritin | Serum | ±4.0 ug/L or 15% if 27.0 ug/L | 5 RCPA | |
| Fibrinogen | Plasma | ±20% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Fibrinogen | Plasma | ±0.2 g/L or 25% if > 1.0 g/L | 5 RCPA | |
| Fluconazole | Serum | ±2.0 mg/L or 10% if > 20 mg/L | 5 RCPA | |
| Flucytosine | Serum | ±10 mg/L or 10% if > 100 mg/L | 5 RCPA | |
| Folate | Serum | ±30% or 1 ng/mL (greater) | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Folate | Serum | ±1.5 nmol/L or 25% if > 6.0 nmol/L | 5 RCPA | |
| Folate, RBC | WB | ±80 nmol/L or 20% if > 400 nmol/L | 5 RCPA | |
| Follicle Stimulating Hormone (FSH) | Serum | ±18% or 2 IU/L (greater) | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Follicle Stimulating Hormone (FSH) | Serum | ±1.0 IU/L or 10% if > 10.0 IU/L | 5 RCPA | |
| Fractional Carboxyhemoglobin | WB | ±1% or 20% if > 5% | 5 RCPA | |
| Fractional Methemoglobin | WB | ±2% or 10% if > 20% | 5 RCPA | |
| Fractional Oxyhemoglobin | WB | ±3% or 4% if > 75% | 5 RCPA | |
| Fructosamine | Serum | ±15 umol/L or 6% if > 250 umol/L | 5 RCPA | |
| Fructosamine | Serum | ±2SD or 0.2 mmol/L (greater) | 6 API | |
| Gamma glutamyl transferase (GGT) | Serum | ±15% or 5 U/L (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Gamma glutamyl transferase (GGT) | Serum | ±2 SD or 15% (greater) | 4 AAB | |
| Gamma glutamyl transferase (GGT) | Serum | ±5 U/L or 12% if > 40 U/L | 5 RCPA | |
| Gastrin | Serum | ±10 pmol/L or 10% if > 100 pmol/L | 5 RCPA | |
| Gentamicin | Serum | ±25% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Gentamicin | Serum | ±25% or 1.0 µg/mL (greater) | 4 AAB | |
| Gentamicin | Serum | ±0.2 mg/L or 10% if > 2.0 mg/L | 5 RCPA | |
| Glucose | Serum | ±8% or 6 mg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Glucose | Body Fluids, CSF, Urine | ±10% | 2 WSLH | |
| Glucose | WB | ±20% or 15 mg/dL | 2 WSLH | |
| Glucose | Serum | ±6 mg/dL or 10% (greater) | 4 AAB | |
| Glucose | WB | ±6 mg/dL or 20% (greater) | 4 AAB | |
| Glucose | Serum, Body Fluids | ±0.4 mmol/L or 8% if > 5.0 mmol/L | 5 RCPA | |
| Glucose | CSF | ±0.2 mmol/L or 10% if > 2.0 mmol/L | 5 RCPA | |
| Glucose | Urine | ±1.0 mmol/L or 10% if > 10.0 mmol/L | 5 RCPA | |
| Glucose | CSF, Body Fluids | ±6 mg/dL or 10% (greater) | 6 API | |
| Glucose | WB | Waived | + 10 mg/dL or + 20% (greater) | 6 API |
| Glucose-6-phosphate-1-dehydrogenase (G6PD) | WB | ±3.0 U/g Hb or 30% if > 10 U/g Hb | 5 RCPA | |
| Growth Hormone | Serum | ±1.0 mU/L or 15% if > 7.0 mU/L | 5 RCPA | |
| Growth Hormone | Serum | ±3SD or ±0.2 ng/mL (greater) | 6 API | |
| Haptoglobin | Serum | ±0.1 g/L or 10% if > 0.8 g/L | 5 RCPA | |
| Hematocrit | WB | ±4% | 1 CLIA, 2 WSLH, 6 API | |
| Hematocrit | WB | ±6 mg/dL or 20% (greater) | 4 AAB | |
| Hematocrit | WB | ±4% or 20% if > 20% | 5 RCPA | |
| Hemoglobin | WB | ±4% | 1 CLIA, 2 WSLH, 6 API | |
| Hemoglobin | WB | ±7% | 4 AAB | |
| Hemoglobin | WB | ±5 g/L or 5% if > 100 g/L | 5 RCPA | |
| Hemoglobin A1c (Glycohemoglobin) | WB | ±8% | 1 CLIA, 2 WSLH, 6 API | |
| Hemoglobin A1c (Glycohemoglobin) | WB | ±5% | 4 AAB | |
| Hemoglobin A1c (Glycohemoglobin) | WB | IFCC | ±4 mmol/mol or 8% if > 45 mmol/mol | 5 RCPA |
| Hemoglobin A1c (Glycohemoglobin) | WB | NGSP | ±0.4% or 6% if > 6.7% | 5 RCPA |
| Hemoglobin, A2 | WB | ±0.3% or 10% if > 2.0 | 5 RCPA | |
| Hemoglobin, F | WB | ±0.5% or 30% if > 1.5% | 5 RCPA | |
| Hemoglobin, F | WB | ±2 SD or ±0.6% units (%) (greater) | 6 API | |
| Hemoglobin, Variant | WB | ±4% or 20% if > 20.0% | 5 RCPA | |
| Hemolysis, Serum Index | Serum | ±8 mg/dL or 10% if > 80 mg/dL | 5 RCPA | |
| Hepatitis (Anti-HBc, HBsAg, HBeAg, Anti-HCV) | Serum | Reactive (positive) or nonreactive (negative) | 1 CLIA, 2 WSLH | |
| Hepatitis, Surface Antibody (Anti-HBs) | Serum | Reactive (positive) or nonreactive (negative) | 1 CLIA, 2 WSLH | |
| Homocysteine | Serum | ±30% | 4 AAB | |
| Homocysteine | Serum | ±1.5 umol/L or 10% if > 15 umol/L | 5 RCPA | |
| Homovanillic Acid (HVA) | Urine | ±6 umol/L or 15% if > 40 umol/L | 5 RCPA | |
| Human Chorionic Gonadotropin (HCG) | Serum | ±18% or 3 mIU/mL (greater) or positive or negative | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Human Chorionic Gonadotropin (HCG) | Serum | ±18% or 2 SD (greater) | 4 AAB | |
| Human Chorionic Gonadotropin (HCG) | Serum | ±1.0 IU/L or 10% if > 10.0 IU/L | 5 RCPA | |
| Human Chorionic Gonadotropin (HCG) | Urine | ±5.0 IU/L or 10% if > 50 IU/L | 5 RCPA | |
| Hydroxyitraconazole | Serum | ±0.2 mg/L or 10% if > 2.0 mg/L | 5 RCPA | |
| Icterus, Serum Index | Serum | ±6.0 umol/L or 25% if > 25.0 umol/L | 5 RCPA | |
| IgA | Serum | ±20% | 1 CLIA, 6 API | |
| IgA | Serum | ±0.06 g/L or 10% if > 0.6 g/L | 5 RCPA | |
| IgD | Serum | ±0.2 g/L or 20% if > 1.0 g/L | 5 RCPA | |
| IgE | Serum | ±20% | 1 CLIA, 6 API | |
| IgE | Serum | ±20 kU/L or 20% if > 100 kU/L | 5 RCPA | |
| IgG | Serum | ±20% | 1 CLIA, 6 API | |
| IgG | Serum | ±25% | 4 AAB | |
| IgG | Serum | ±0.6 g/L or 10% if > 6 g/L | 5 RCPA | |
| IgG | CSF | ±0.02 g/L or 20% if > 0.1 g/L | 5 RCPA | |
| IgM | Serum | ±20% | 1 CLIA, 6 API | |
| IgM | Serum | ±0.08 g/L or 15% If > 0.5 g/L | 5 RCPA | |
| Immature granulocytes (IG's) | WB | ±3% or 30% if > 10% | 5 RCPA | |
| Infectious mononucleosis | Serum | ±2 dilutions or positive or negative | 1 CLIA, 2 WSLH | |
| INR | Plasma | ±15% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| INR | Plasma | ±0.3 ratio or 15% if > 2.0 ratio | 5 RCPA | |
| Insulin | Serum | ±6 mU/L or 12% if > 5 mU/L | 5 RCPA | |
| Insulin-like Growth Factor (IGF-1) | Serum | ±3 nmol/L or 12% if > 25 nmol/L | 5 RCPA | |
| Insulin-like Growth Factor (IGF-1) | Serum | ±3 SD or ±0.2 ng/mL (greater) | 6 API | |
| Insulin-like Growth Factor Binding Protein (IGFBP-3) | Serum | ±15 nmol/L or 15% if > 100 nmol/L | 5 RCPA | |
| Iodine | Urine | ±80 nmol/L or 10% if > 800 nmol/L | 5 RCPA | |
| Iron (Fe) | Serum | ±15% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Iron (Fe) | Serum | ±20% | 4 AAB | |
| Iron (Fe) | Serum, Urine | ±3.0 umol/L or 12% if > 25.0 umol/L | 5 RCPA | |
| Iron Binding Capacity, Total (IBC) | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Iron Binding Capacity, Total (IBC) | Serum, Urine | ±20% | 4 AAB | |
| Iron Binding Capacity, Total (IBC) | Serum | ±4 umol/L or 8% if > 50.0 umol/L | 5 RCPA | |
| Iron Binding Capacity, Unsaturated (UIBC) | Serum | ±20% | 2 WSLH | |
| Isopropanol | WB | ±25% | 6 API | |
| Itraconazole | Serum | ±0.1 mg/L or 10% if > 1.0 mg/L | 5 RCPA | |
| Lactate | Serum | ±0.2 mmol/L | 2 WSLH | |
| Lactate | CSF | ±10% | 2 WSLH | |
| Lactate | Serum | ±0.4 mmol/L or 3 SD (greater) | 3 CAP, 4 AAB, 6 API | |
| Lactate | Serum | ±0.5 mmol/L or 12% if > 4.0 mmol/L | 5 RCPA | |
| Lactate | CSF | ±0.3 mmol/L or 10% if > 3.0 mmol/L | 5 RCPA | |
| Lactate | Body Fluids | ±1.0 mmol/L or 25% if > 4.0 mmol/L | 5 RCPA | |
| Lactate | CSF | ±0.4 mmol/L or 3 SD (greater) | 6 API | |
| Lactate Dehydrogenase (LD, LDH) | Serum | ±15% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Lactate Dehydrogenase (LD, LDH) | Body Fluids | ±20% | 2 WSLH, 6 API | |
| Lactate Dehydrogenase (LD, LDH) | Serum | ±20% | 4 AAB | |
| Lactate Dehydrogenase (LD, LDH) | Serum, Body Fluids | ±20 U/L or 8% if > 250 U/L | 5 RCPA | |
| Lamellar Body Count | Amniotic Fluid | ±25% | 6 API | |
| Lead (Pb) | WB | ±10% or 2 µg/dL (greater) | 1 CLIA, 2 WSLH, 6 API | |
| Lead (Pb) | WB | ±4 µg/dL or 10% (greater) | 4 AAB | |
| Lead (Pb) | Urine | ±50 nmol/L or 10% if > 500 nmol/L | 5 RCPA | |
| Lead (Pb) | WB | ±0.05 umol/L or 10% if > 0.50 umol/L | 5 RCPA | |
| Lidocaine | Serum | ±3 SD or 10% (greater) | 3 CAP, 6 API | |
| Lipase | Serum | ±30% | 2 WSLH, 3 CAP, 4 AAB | |
| Lipase | Serum | ±12 U/L or 20% if > 60 U/L | 5 RCPA | |
| Lipase | Serum, Body Fluids | ±2 SD or ±30 U/L (greater) | 6 API | |
| Lipase | Body Fluids | ±24 U/L or 40% if > 60 U/L | 5 RCPA | |
| Lipemia, Serum Index | Serum | ±26 mg/dL or 10% if > 263 mg/dL | 5 RCPA | |
| Lipoprotein (a) | Serum | ±0.06 g/L or 20% if > 0.3 g/L | 5 RCPA | |
| Lithium | Serum | ±15% or 0.3 mmol/L (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Lithium | Serum | ±0.3 mmol/L or 20% (greater) | 4 AAB | |
| Lithium | Serum | ±0.2 mmol/L or 10% if > 2.0 mmol/L | 5 RCPA | |
| Luteinizing Hormone (LH) | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Luteinizing Hormone (LH) | Serum | ±1.5 IU/L or 15% if > 10.0 IU/L | 5 RCPA | |
| Lymphocytes, count | WB | ±2% or 20% if > 10% | 5 RCPA | |
| Magnesium | Serum | ±15% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Magnesium | Urine | ±25% | 2 WSLH | |
| Magnesium | Serum | ±25% | 4 AAB | |
| Magnesium | Serum, WB | ±0.1 mmol/L or 8% if > 1.25 mmol/L | 5 RCPA | |
| Magnesium | Urine | ±0.3 mmol/L or 15% if > 2.0 mmol/L | 5 RCPA | |
| Magnesium | Urine | ±0.1 mmol/L or 8% if > 1.25 mmol/L | 5 RCPA | |
| Magnesium | Urine | ±25% | 6 API | |
| Manganese | Serum | ±0.1 nmol/L or 8% if | 5 RCPA | |
| Manganese | Urine | ±3 nmol/L or 12% if > 25 nmol/L | 5 RCPA | |
| Manganese | WB | ±30 nmol/L or 12% if > 250 nmol/L | 5 RCPA | |
| Mean corpuscular hemoglobin (MCH) | WB | ±2 pg or 10% if > 20 pg | 5 RCPA | |
| Mean corpuscular hemoglobin concentration (MCHC) | WB | ±30 g/L or 10% if > than 300 g/L | 5 RCPA | |
| Mean corpuscular volume (MCV) | WB | ±5 fL or 10% if > 50 fL | 5 RCPA | |
| Mean platelet volume (MPV) | WB | ±2 fL or 20% if > 10 fL | 5 RCPA | |
| Metanephrine | Plasma | ±75 pmol/L or 15% if > 500 pmol/L | 5 RCPA | |
| Metanephrine | Urine | ±0.2 umol/L or 20% if > 1.0 umol/L | 5 RCPA | |
| Metanephrine, Free | Urine | ±30 nmol/L or 30% if > 100 nmol/L | 5 RCPA | |
| Methanol | Serum, Urine | ±25% | 6 API | |
| Methemoglobin | WB | ±0.003 | 2 WSLH | |
| Methemoglobin | WB | ±2 units (%) | 6 API | |
| Methotrexate | Serum | ±3 SD or 10% (greater) | 3 CAP, 6 API | |
| Methotrexate | Serum | ±0.10 ug/L or 10% if > 1.00 umol/L | 5 RCPA | |
| Methyoxytyramine | Plasma | ±36 pmol/L or 30% if > 120 pmol/L | 5 RCPA | |
| Mercury | Serum | ±30% or 3 ug/L | 2 WSLH | |
| Mercury | Serum, Urine, WB | ±9 nmol/L or 15% if > 60 nmol/L | 5 RCPA | |
| Microalbumin | Urine | ±10% | 2 WSLH | |
| Microalbumin | Urine | ±30% | 4 AAB | |
| Microalbumin | Urine | ±3 SD or ±30% (greater) | 6 API | |
| Monocytes, count | WB | ±3% or 30% if > 10% | 5 RCPA | |
| Mycophenolate | Serum | ±0.10 ug/L or 10% if > 1.00 mg/L | 5 RCPA | |
| Myoglobin | Serum | ±2 SD or 30% (greater) | 4 AAB | |
| Myoglobin | Serum | ±2 SD or ±15 ng/mL (greater) | 6 API | |
| N-Acetylprocainamide (NAPA) | Serum | ±25% | 3 CAP | |
| Neuron-specific enolase (NSE) | Serum | ±2 ug/L or 10% if > 20 ug/L | 5 RCPA | |
| Neutrophil, count | WB | automated | ±1% or 10% if > 10.0% | 5 RCPA |
| Nickel | Urine | ±40 nmol/L or 10% if > 400 nmol/L | 5 RCPA | |
| Noradrenaline | Urine | ±75 nmol/L or 15% if > 500 nmol/L | 5 RCPA | |
| Normetanephrine | Plasma | ±200 pmol/L or 20% if > 1000 pmol/L | 5 RCPA | |
| Normetanephrine | Urine | ±0.4 umol/L or 20% if > 2.0 umol/L | 5 RCPA | |
| Normetanephrine, Free | Urine | ±40 nmol/L or 20% if > 200 nmol/L | 5 RCPA | |
| Nortriptyline | Serum | ±3.0 ug/L or 10% if > 26.0 ug/L | 5 RCPA | |
| N-Telopeptides | Urine | ±80 nmolBCE/L or 10% if > 700 nmolBCE/L | 5 RCPA | |
| O2 Saturation (measured) | WB | ±3 SD or ±3 units (%) (greater) | 6 API | |
| Osmolality | Urine | ±10% | 2 WSLH | |
| Osmolality | Serum, Body Fluids | ±8 mmol/kg or 3% if > 266 mmol/kg | 5 RCPA | |
| Osmolality | Urine | ±6 mmol/kg or 2% if > 300 mmol/kg | 5 RCPA | |
| Oxidants | Urine | ±2SD or ±30 ug/mL (greater) PAP + | 6 API | |
| Oxyhemaglobin | WB | ±3SD or ±3 units (%) (greater) PAP + | 6 API | |
| Pancreatic Amylase | Serum | ±30% | 3 CAP | |
| Parathyroid hormone (PTH) | Serum | ±30% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Parathyroid Hormone (PTH) | Serum | ±1.0 pmol/L or 12% if > 8.0 pmol/L | 5 RCPA | |
| Partial thromboplastin time (PTT), (aPTT) | Plasma | ±15% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Partial thromboplastin time (PTT), (aPTT) | Plasma | ±10 sec or 25% if > 40 sec | 5 RCPA | |
| pCO2 | WB | ±8% or 5 mmHg (greater) | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| pCO2 | WB | ±2 mm Hg or 6% if > 34.0 mm Hg | 5 RCPA | |
| pH | WB | ±0.04 | 1 CLIA, 2 WSLH, 4 AAB, 5 RCPA, 6 API | |
| pH | Body Fluids | ±0.5 | 2 WSLH | |
| pH | Body Fluids | ±0.02 | 5 RCPA | |
| Phenobarbital | Serum | ±15% or 2 µg/mL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Phenobarbital | Serum | ±20% | 4 AAB | |
| Phenobarbitone | Serum | ±0.7 mg/L or 10% if > 7.0 mg/L | 5 RCPA | |
| Phenytoin | Serum | ±15% or 2 µg/mL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Phenytoin | Serum | ±25% | 4 AAB | |
| Phenytoin | Serum | ±0.8 mg/L or 10% if > 7.6 mg/L | 5 RCPA | |
| Phenytoin, Free | Serum | ±3 SD or 10% (greater) | 3 CAP | |
| Phosphate | Serum | ±0.06 mmol/L or 8% if > 0.75 mmol/L | 5 RCPA | |
| Phosphate | Urine | ±3 mmol/L or 15% if > 20 mmol/L | 5 RCPA | |
| Phosphorus | Serum | ±10% or 0.3 mg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Phosphorus | Urine | ±15% or 0.5 mg/dL | 2 WSLH | |
| Platelet count | WB | ±25% | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Platelet count | WB | ±25x109/L or 25% If > 100x109/L | 5 RCPA | |
| pO2 | WB | ±15% or 15 mmHg (greater) | 1 CLIA, 2 WSLH, 6 API | |
| pO2 | WB | ±5 mm Hg or 6% if > 83 mm Hg | 5 RCPA | |
| Porphobilinogen | Urine | ±5 umol/L or 25% if > 20 umol/L | 5 RCPA | |
| Porphyrin, Total | Plasma | ±4 nmol/L or 20% if > 20 nmol/L | 5 RCPA | |
| Porphyrin, Total | Urine | ±60 nmol/ or 20% if > 300 nmol/L | 5 RCPA | |
| Porphyrin, Total | Fecal | ±40 umol/kg or 20% if > 200 umol/kg | 5 RCPA | |
| Porphyrin, Total RBC | WB | ±0.4 umol/Lrc or 20% if > 2.0 umol/Lrc | 5 RCPA | |
| Posaconazole | Serum | ±0.1 mg/L or 10% if > 1.0 mg/L | 5 RCPA | |
| Potassium (K) | Serum | ±0.3 mmol/L | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Potassium (K) | Urine | ±10% | 2 WSLH | |
| Potassium (K) | Serum | ±0.5 mmol/L | 4 AAB | |
| Potassium (K) | Serum | ±0.2 mmol/L or 5% if > 4.0 mmol/L | 5 RCPA | |
| Potassium (K) | Body Fluids | ±0.4 mmol/L or 10% if > 4 mmol/L | 5 RCPA | |
| Potassium (K) | Urine | ±2 mmol/L or 10% > 20 mmol/L | 5 RCPA | |
| Potassium (K) | Body Fluids | ±0.5 mmol/L | 6 API | |
| Prealbumin | Serum | ±5.0 mg/dL or 25% (greater) | 3 CAP, 6 API | |
| Prealbumin | Serum | ±25% | 4 AAB | |
| Prealbumin | Serum | ±0.04 g/L or 20% if > 0.2 g/L | 5 RCPA | |
| Primidone | Serum | ±25% | 3 CAP | |
| Pro B-natriuretic Peptide (proBNP) | Serum | ±30% | 1 CLIA | |
| Procainamide | Serum | ±25% | 3 CAP | |
| Procalcitonin | Serum | ±0.05 ng/mL or 30% if > 0.15 ng/mL | 5 RCPA | |
| Progesterone | Serum | ±25% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Progesterone | Serum | ±2 nmol/L or 15% if > 10 nmol/L | 5 RCPA | |
| Prolactin | Serum | ±20% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Prolactin | Serum | ±40 mIU/L or 10% if > 400 mIU/L | 5 RCPA | |
| Prostate Specific Antigen (PSA) | Serum | ±20% or 0.2 ng/mL (greater) | 1 CLIA, 2 WSLH, 6 API | |
| Prostate Specific Antigen (PSA) | Serum | ±0.9 ng/mL or 30% | 4 AAB | |
| Prostate Specific Antigen (PSA) | Serum, Urine | ±0.4 ug/L or 8% if > 5.0 ug/L | 5 RCPA | |
| Prostate Specific Antigen (PSA), Free | Serum | ±30% or 0.9 ng/mL | 2 WSLH | |
| Prostate Specific Antigen (PSA), Free | Serum | ±0.9 ng/mL or 30% | 4 AAB | |
| Prostate Specific Antigen (PSA), Free | Serum | ±0.2 ug/L or 15% if > 1.4 ug/L | 5 RCPA | |
| Prostate Specific Antigen (PSA), Free | Serum | ±3 SD or ±0.4 ng/mL (greater) | 6 API | |
| Prostatic Acid Phosphatase (PAP) | Serum | ±2 SD or ±30% (greater) | 6 API | |
| Protein, Total | Serum | ±8% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Protein, Total | Body Fluids, CSF, Urine | ±10% | 2 WSLH | |
| Protein, Total | Serum | ±10% | 4 AAB | |
| Protein, Total | Urine | ±44% | 4 AAB | |
| Protein, Total | Serum, Body Fluids | ±3.0 g/L or 5% if > 60 g/L | 5 RCPA | |
| Protein, Total | CSF | ±0.05 g/L or 10% if > 0.5 g/L | 5 RCPA | |
| Protein, Total | CSF, Body Fluids | ±3.0 SD or ±10% (greater) | 6 API | |
| Protein, Total | Urine | ±0.1 g/L or 10% if > 1.00 g/L | 5 RCPA | |
| Protein C, Functional | Plasma | ±12% or 20% if > 60% | 5 RCPA | |
| Protein S, Free Antigen | Plasma | ±10% or 25% if > 40% | 5 RCPA | |
| Protein S, Free Functional | Plasma | ±10% or 25% if > 40% | 5 RCPA | |
| Protein S, Total Antigen | Plasma | ±10% or 25% if > 40% | 5 RCPA | |
| Prothrombin Time (PT) | Serum | ±15% | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Prothrombin Time (PT) | Plasma | ±2.0 sec or 20% if > 10 sec | 5 RCPA | |
| Quinidine | Serum | ±25% | 3 CAP | |
| RBC, Red Cell count, Erythrocyte Count | WB | automated differential | ±4% | 1 CLIA, 2 WSLH, 6 API |
| RBC, Red Cell count, Erythrocyte Count | WB | quantitative | ±6% | 4 AAB |
| Red Cell Distribution Width (RDW) | WB | ±2% or 20% if > 10% | 5 RCPA | |
| Reticulocyte count | WB | ±30% or 2 SD (greater) | 4 AAB | |
| Reticulocyte count | WB | automated % | ±1.0% or 10% if > 10% | 5 RCPA |
| Reticulocyte count | WB | automated absolute | ±10x109/L or 10% if > 100x109/L | 5 RCPA |
| Reticulocyte count | WB | manual % | ±0.6% or 30% if > 2% | 5 RCPA |
| Reticulocyte count | WB | manual absolute | ±21x109/L or 30% if > 70x109/L | 5 RCPA |
| Rheumatoid Factor (RF) | Serum | ±2 dilutions or positive or negative | 1 CLIA, 2 WSLH | |
| Rheumatoid Factor (RF) | Serum | ±12 IU/mL or 20% if > 60 IU/mL | 5 RCPA | |
| Rheumatoid Factor (RF) | Serum | ±20 IU/mL or ±3SD | 6 API | |
| Rubella | Serum | ±2 dilutions or positive or negative or immune or nonimmune | 1 CLIA, 2 WSLH | |
| Rubella | Serum | ±10 IU/mL or ±3SD | 6 API | |
| Salicylates | Serum | ±15% or 2 µg/mL or 0.2 mg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Salicylates | Serum | ±25% | 4 AAB | |
| Salicylates | Serum | ±14 mg/L or 10% if > 143.0 mg/L | 5 RCPA | |
| Selenium | Serum | ±0.18 umol/L or 12% if > 1.50 umol/L | 5 RCPA | |
| Selenium | Urine | ±0.06 umol/L or 12% if > 0.50 umol/L | 5 RCPA | |
| Selenium | WB | ±0.3 umol/L or 12% if > 2.50 umol/L | 5 RCPA | |
| Serotonin | Urine | ±0.2 umol/L or 20% if > 1.0 umol/L | 5 RCPA | |
| Sex hormone binding globulin (SHBG) | Serum | ±6 nmol/L or 12% if > 50 nmol/L | 5 RCPA | |
| Sirolimus | Serum | ±0.5 ug/L or 10% if > 5.0 ug/L | 5 RCPA | |
| Sodium (Na) | Serum | ±4 mmol/L | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Sodium (Na) | Urine | ±10% or 4 mmol/L | 2 WSLH | |
| Sodium (Na) | Serum | ±3 mmol/L or 2% if > 150 mmol/L | 5 RCPA | |
| Sodium (Na) | Body Fluids | ±6 mmol/L or 4% if > 150 mmol/L | 5 RCPA | |
| Sodium (Na) | Urine | ±4 mmol/L or 10% if > 40 mmol/L | 5 RCPA | |
| Sodium (Na) | Body Fluids | ±4 mmol/L | 6 API | |
| Specific Gravity | Urine | ±0.010 | 2 WSLH, 4 AAB, 6 API | |
| T3 Free, (FT3) Triiodothyronine, Free | Serum | ±0.7 pmol/L or 20% if > 3.5 pmol/L | 5 RCPA | |
| T3, Total Triiodothyronine | Serum | ±30% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| T3, Total Triiodothyronine | Serum | ±0.2 nmol/L or 15% if > 1.3 nmol/L | 5 RCPA | |
| T3 Uptake | Serum | ±18% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| T4, Thyroxine | Serum | ±20% or 1.0 µg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| T4, Thyroxine | Serum | ±12 nmol/L or 10% if > 120 nmol/L | 5 RCPA | |
| T4, Free Thyroxine, (FT4) | Serum | ±15% or 0.3 ng/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| T4, Free Thyroxine, (FT4) | Serum | ±1.5 pmol/L or 12% if > 12.0 pmol/L | 5 RCPA | |
| Tacrolimus | Serum | ±0.5 ug/L or 10% if > 5.0 ug/L | 5 RCPA | |
| Testosterone | Serum | ±30% or 20 ng/dL or 0.2 ng/mL (greater) | 1 CLIA, 2 WSLH, 4 AAB, 6 API | |
| Testosterone | Serum | ±0.4 nmol/L or 15% if > 2.7 nmol/L | 5 RCPA | |
| Thallium | Serum, Urine | ±1 nmol/L or 10% if > 10 nmol/L | 5 RCPA | |
| Thallium | WB | ±2 nmol/L or 10% if > 10 nmol/L | 5 RCPA | |
| Theophylline | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Theophylline | Serum | ±25% | 4 AAB | |
| Theophylline | Serum | ±0.5 mg/L or 10% if > 5.4 mg/L | 5 RCPA | |
| Thrombin Time (TT) | Plasma | ±3.0 sec or 25% if > 12.0 sec | 5 RCPA | |
| Thyroglobulin | Serum | ±0.2 ug/L or 12% if > 1.7 ug/L | 5 RCPA | |
| Thyroglobulin | Serum | ±20 IU/mL or ±2SD | 6 API | |
| Thyroid Microsoml AB (Anti-TPO) | Serum | ±20 IU/mL or ±2SD | 6 API | |
| Thyroid Stimulating Hormone (TSH) | Serum | ±20% or 0.2 mIU/L (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Thyroid Stimulating Hormone (TSH) | Serum | ±0.1 mU/L or 20% if > 0.5 mU/L | 5 RCPA | |
| Tobramycin | Serum | ±20% | 1 CLIA, 3 CAP, 6 API | |
| Tobramycin | Serum | ±20% | 2 WSLH | |
| Tobramycin | Serum | ±0.2 mg/L or 10% if > 2.0 mg/L | 5 RCPA | |
| Transferrin | Serum | ±20% | 3 CAP | |
| Transferrin | Serum | ±10% | 4 AAB | |
| Transferrin | Serum | ±0.2 g/L or 8% if > 2.50 g/L | 5 RCPA | |
| Triglycerides | Serum | ±15% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Triglycerides | Body Fluids | ±25% | 2 WSLH | |
| Triglycerides | Serum | ±25% | 4 AAB | |
| Triglycerides | Serum | ±0.2 mmol/L or 12% if > 1.60 mmol/L | 5 RCPA | |
| Triglycerides | Body Fluids | ±0.3 mmol/L or 25% if > 1.2 mmol/L | 5 RCPA | |
| Triglycerides | Body Fluids | ±3.0 SD or ±10 mg/dL (greater) | 6 API | |
| Troponin I | Serum | ±30% or 0.9 ng/mL (greater) | 1 CLIA, 2 WSLH, 6 API | |
| Troponin I | Serum | ±30% | 4 AAB | |
| Troponin I | Serum | ±0.002 ug/L or 20% if > 0.010 ug/L | 5 RCPA | |
| Troponin I | Serum | POC | ±0.01 ug/L or 20% if > 0.05 ug/L | 5 RCPA |
| Troponin T | Serum | ±30% or 0.2 ng/mL (greater) | 1 CLIA, 2 WSLH, 6 API | |
| Troponin T | Serum | ±30% | 4 AAB | |
| Troponin T | Serum | ±0.001 ug/L or 20% if > 0.050 ug/L | 5 RCPA | |
| Troponin T | Serum | ±10 ng/L or 20% if > 50 ng/L | 5 RCPA | |
| Tryptase | Serum | ±0.6 ug/L or 15% if > 4.0 ug/L | 5 RCPA | |
| Urate | Serum | ±0.030 mmol/L or 8% if > 0.380 mmol/L | 5 RCPA | |
| Urate | Body Fluids | ±0.06 mmol/L or 16% if > 0.38 mmol/L | 5 RCPA | |
| Urate | Urine | ±0.3 mmol/L or 15% if > 2 mmol/L | 5 RCPA | |
| Urea Nitrogen (BUN) | Serum | ±9% or 2 mg/dL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 4 AAB, 6 API | |
| Urea Nitrogen (BUN) | Urine | ±10% | 2 WSLH | |
| Urea Nitrogen (BUN) | Serum | ±0.5 mmol/L or 12% if > 4.0 mmol/L | 5 RCPA | |
| Urea Nitrogen (BUN) | Body Fluids | ±1.0 mmol/L or 24% if > 4.0 mmol/L | 5 RCPA | |
| Urea Nitrogen (BUN) | Urine | ±20 mmol/L or 10% if > 200 mmol/L | 5 RCPA | |
| Urea Nitrogen (BUN) | Body Fluids | ±9% or 2 mg/dL (greater) | 6 API | |
| Uric Acid | Serum | ±10% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Uric Acid | Serum | ±17% | 4 AAB | |
| Uric Acid | Urine | ±17% or 2 mg/dL | 2 WSLH | |
| Uric Acid | Body Fluids | ±17% | 6 API | |
| Valproate | Serum | ±4.0 mg/L or 10% if > 36.0 mg/L | 5 RCPA | |
| Valproic Acid | Serum | ±20% | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Valproic Acid | Serum | ±25% | 4 AAB | |
| Valproic Acid, Free | Serum | ±3 SD or 10% (greater) | 3 CAP | |
| Vanadium | Serum | ±1 nmol/L or 10% if > 10nmol/L | 5 RCPA | |
| Vanadium | Urine | ±2 nmol/L or 10% if > 10nmol/L | 5 RCPA | |
| Vancomycin | Serum | ±15% or 2 µg/mL (greater) | 1 CLIA, 2 WSLH, 3 CAP, 6 API | |
| Vancomycin | Serum | ±25% or 1.0 ug/mL (greater) | 4 AAB | |
| Vancomycin | Serum | ±2.0 mg/L or 10% if > 20.3 mg/L | 5 RCPA | |
| Vitamin A | Serum | ±0.2 umol/L or 12% if > 1.7 umol/L | 5 RCPA | |
| Vitamin B1 | Serum | ±9 nmol/L or 15% if > 60 nmol/L | 5 RCPA | |
| Vitamin B2 | Serum | ±25 nmol/L or 10% if > 250 nmol/L | 5 RCPA | |
| Vitamin B6 | Plasma, WB | ±9 nmol/L or 15% if > 60 nmol/L | 5 RCPA | |
| Vitamin B12 | Serum | ±25% or 30 pg/mL (greater) | 1 CLIA, 2 WSLH, 6 API | |
| Vitamin B12 | Serum | ±25% | 4 AAB | |
| Vitamin B12 | Serum | ±18 pmol/L or 15% if > 120 pmol/L | 5 RCPA | |
| Vitamin C | Serum | ±7 umol/L or 20% if > 35 umol/L | 5 RCPA | |
| Vitamin D3 | Serum | ±9 nmol/L or 15% if > 60 nmol/L | 5 RCPA | |
| Vitamin E | Serum | ±3 umol/L or 12% if > 25 umol/L | 5 RCPA | |
| von Willebrand Activity | Plasma | ±4% or 40% if > 10% | 5 RCPA | |
| von Willebrand factor, Antigen (vWF:Ag) | Plasma | ±3% or 30% if > 10% | 5 RCPA | |
| von Willebrand Collagen binding (vWF:CB) | Plasma | ±4% or 40% if > 10% | 5 RCPA | |
| von Willebrand Ristocetin Cofactor (vWF:rCo) | Plasma | ±4% or 40% if > 10% | 5 RCPA | |
| Voriconazole | Serum | ±0.2 mg/L or 10% if > 2.0 mg/L | 5 RCPA | |
| WBC, White Cell Count, Leukocyte count) | WB | automated differential | ±10% | 1 CLIA, 2 WSLH, 6 API |
| WBC, White Cell Count, Leukocyte count) | WB | ±15% | 4 AAB | |
| WBC, White Cell Count, Leukocyte count) | WB | ±0.5x109/L or 10% if > 5.0 x109/L | 5 RCPA | |
| WBC Differential | WB | ±3SD based on the percentage of different types of white blood cells in the samples | 1 CLIA, 2 WSLH, 6 API | |
| WBC Differential | WB | automated differential | ±3% or 30% if > 10% | 5 RCPA |
| Zinc | Serum, Urine | ±2 umol/L or 10% if > 20.0 umol/L | 5 RCPA | |
| Zinc | WB | ±6 umol/L or 10% if > 60 umol/L | 5 RCPA |
Sources
| Abbreviation | Source | Effective Date |
|---|---|---|
| 1 CLIA | CLIA – Federal Register | July 2024 |
| 2 WLSH | Wisconsin State Laboratory of Hygiene | January 2025 |
| 3 CAP | College of American Pathologists | January 2025 |
| 4 AAB | American Association of Bioanalysts | 2022 |
| 5 RCPA | The Royal College of Pathologists of Australasia and the Australasian Clinical Biochemist association Quality Assurance Program | December 2022 |
| 6 API | American Proficiency Institute | May 2025 |
