| | Reference Range (Commonly used units) | Reference Range (Other units) | Conversion Factor (SIU = Value in Other Units x Conversion Factor) | Category |
| Alanine Aminotransferase (ALT) | 3 - 35 iu/L | | | Liver Function |
| Albumin | 35 - 50 g/L | | | Urea & Electrolytes |
| Alkaline Phosphate (ALP) | 30 - 35 iu/L | | | Liver Function |
| Alpha fetoprotein (adult) | < 10 ng/mL | < 10 micrograms/L | | Tumor Markers |
| Amylase | 0 - 180 somorgyiu/L | | | Miscellaneous |
| Aspartate Transaminase (AST) | 3 - 35 iu/L | | | Liver Function |
| Base Excess | +- 2mmol/L | | | Blood Gases |
| bHCG (men and non pregnant women) | <3 mIU/mL | <3 IU/L | | Tumor Markers |
| Bicarbonate (HCO3) | 22 - 25mmol/L | | | Blood Gases |
| Bilirubin | 3 - 17 micromol/L | | | Liver Function |
| CA 125 | < 35 u/ml | | | Tumor Markers |
| CA 15-3 | < 31 U/ml | | | Tumor Markers |
| CA 19-9 | < 37 u/ml | | | Tumor Markers |
| Calcium | 2.12 - 2.65 mmol/L | | | Urea & Electrolytes |
| Carcinoembryonic Antigen (CEA) | <2.5 ng/ml in a non smoker | < 0.5ng/ml in a smoker | | Tumor Markers |
| Chloride | 98-106 meq/L | 98-106 mmol/L | | Urea & Electrolytes |
| Cholesterol - HDL | > 1.03 mmol/L | > 40 mg/dL | | Lipids |
| Cholesterol - LDL | < 3.36 mmol/L | <130 mg/dL | | Lipids |
| Cholesterol (Total) | < 6 mmol/L | | | Lipids |
| Copper | 70-155 mg/dL | 11-24 mmol/L | | Urea & Electrolytes |
| Cortisol A.M. (Plasma) | 5-25 mg/dL | 140-690 nmol/L | | Endocrine |
| Cortisol P.M | 3-12 mg/dL | 80-330 nmol/L | | Endocrine |
| Creatine Kinase | 25 - 195 iu/L | Females < 190iu/L, Males < 235iu/L | | Cardiac Enzymes |
| Creatinine | 70 - 150micromol/L | | | Urea & Electrolytes |
| CRP | < 10 mg/L | | | Inflammatory Markers |
| ESR | < 20 mm/h | | | Inflammatory Markers |
| Ferritin (Men) | 15-400 ng/mL | 15-400 mg/L | | Haematology |
| Ferritin (Women) | 10-200 ng/mL | 10-200 mg/L | | Haematology |
| FSH (Follicle-stimulating hormone) | 0.9-15 mIU/mL | 0.9-15 IU/L | | Endocrine |
| Glucose (Fasting) | 3.5 - 5.5 mmol/L | | | Miscellaneous |
| Glucose fasting (Diabetes mellitus) | > 7.8mmol/L | >140 mg/dL | | Miscellaneous |
| Glucose--2 hour post prandial (Impaired glucose tolerance) | 7.8-11.1 mmol/L | 140-200 mg/dL | | Miscellaneous |
| Glucose--2 hour post prandial (Normal) | <7.8 mmol/L | <140 mg/dL | | Miscellaneous |
| Glucose--2 hour postprandial (Diabetes mellitus) | >11.1 mmol/L | >200 mg/dL | | Miscellaneous |
| Haemaglobin(Hb) female | 11.5 - 15 g/dL | (115 - 150 g/L) OR (7.1 - 9.3 mmol/L) | 10 (g/dL - g/L) OR 0.6206 (g/dL - mmol/L) | Haematology |
| Haemaglobin(Hb) male | 13 - 18 g/dL | (130 - 180 g/L) OR (8.1 - 11.2 mmol/L) | 10 (g/dL - g/L) OR 0.6206 (g/dL - mmol/L) | Haematology |
| Hemoglobin A1c (HBA1C) | 3.8-6.4% | | | Miscellaneous |
| Iron | 60-150 mg/dL | 11-29 mmol/L | | Haematology |
| Lactate Dehydrogenase | 70 -250 iu/L | | | Cardiac Enzymes |
| Magnesium | 1.8-3 mg/dL | 0.8-1.2 mmol/L | | Urea & Electrolytes |
| MCV (Mean corpuscular volume) | 86-98 mm3 | 86-98 fl | | Haematology |
| Mean Cell Volume (MCV) | 76 - 96 fL | | | Haematology |
| Myoglobin | <55 ng/L | <55 mg/L | | Miscellanious |
| PaCO2 | 4.7 - 6.0 Kpa | | | Blood Gases |
| PaO2 | > 10.6 Kpa | | | Blood Gases |
| Parathyroid hormone (PTH) | 10-60 pg/mL | 10-60 ng/L | | Endocrine |
| pH | 7.35 - 7.45 | | | Blood Gases |
| Phosphate | | | | Urea & Electrolytes |
| Platelets | 150 - 400 x 109/L | | | Haematology |
| Potassium | 3.5 - 5.0mmol/L | | | Urea & Electrolytes |
| Prolactin | 2-15 mg/L | | | Endocrine |
| Proteins | 60 - 80 g/L | | | Urea & Electrolytes |
| PSA (< 40) | 0 - 2ng/mL | | | Tumor Markers |
| PSA (> 40) | 0 - 4ng/mL | | | Tumor Markers |
| Red Cell Count | 4.2 - 6.1 x 1012/L | | | Haematology |
| Reverse T3 (rT3) | 2.6-18.9 ng/dL | 0.04-0.29 nmol/L | | Endocrine |
| Rheumatoid factor | < 40 IU/mL | < 40 kIU/L | | Miscellanious |
| Sodium | 135 - 145mmol/L | | | Urea & Electrolytes |
| T3 (Free) | 230-420 pg/dL | 3.5-6.5 pmol/L | | Endocrine |
| Thyroid Stimulating Hormone (TSH) | 0.5 - 5 mu/L | | | Endocrine |
| Total T3 | 60 -181 ng/dL | 0.9-2.8 nmol/L | | Endocrine |
| Total Thyroxine (T4) | 70 -1 40 mmol/L | 5-12 mg/dL | | Endocrine |
| Transferrin | 230-390 mg/dL | 2.3-3.9 g/L | | Haematology |
| Triglycerides | 0.5 - 1.9 mmol/L | | | Lipids |
| Troponin I | 0-0.4 ng/mL | 0-0.004 mg/L | | Cardiac Enzymes |
| Troponin T | 0-0.1 ng/mL | 0-0.001 mg/L | | Cardiac Enzymes |
| Urea | 2.5 - 6.7 mmol/L | | | Urea & Electrolytes |
| Urinary Catecholamines | 8 – 35 mmols / 24hrs | | | Tumor Markers |
| Vitamin B12 | 200-600 pg/mL | 148-443 pmol/L | | Miscellaneous |
| Vitamin D3, 1,25-dihydroxy | 25-45 pg/mL | | | Miscellaneous |
| WCC - Eosinophils | 1 - 6% | | | Haematology |
| WCC - Lymphocytes | 20 - 45% | | | Haematology |
| WCC - Neutrophils | 40 - 75% | | | Haematology |
| White Cell Count | 4 -11 x 109/L | | | Haematology |