Medical Council of Canada

Normal values

Clinical Laboratory Tests - Normal Values

This table lists reference values for the most common laboratory tests and is intended for interpretation of the results as they are provided in the examination. Note that all values are provided in SI units. All values apply to adults.

Many important laboratory reference values are not listed here, because of the less frequent use of these tests. Such values are inserted in parentheses following the result recorded in the examination questions.

BLOOD

COAGULATION (HEMOSTASIS)

Bleeding time (Ivy) < 9 minutes
International Normalized Ratio (INR) 0.9-1.2
Partial thromboplastin time (PTT) 28-38 seconds
Prothrombin time (PT) 10-13 seconds
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Hematocrit (Hct)
      Female 0.370-0.460
      Male 0.380-0.500
Hemoglobin (Hb)
      Female 123-157 g/L
      Male 130-170 g/L
Mean corpuscular volume (MCV) 80-100 fL
Mean corpuscular hemoglobin (MCH) 27-34 pg
Platelet count 130-400 X 109/L
Red blood cells (RBC)
      Female 4.0-5.2 X 1012/L
      Male 4.4-5.7 X 1012 /L
Red cell distribution width (RDW) 11.5-14.5%
Reticulocyte count 20-84 X 109/L
Erythrocyte Sedimentation rate (Westergren)
      Female < 10 mm/hour
      Male < 6 mm/hour

 

HEMOGRAM
White blood cell count (WBC) 4-10 X 109/L
      Segmented neutrophils 2-7 X 109/L
      Band neutrophils < 0.7 X 109/L
      Basophils < 0.10 X 109/L
      Eosinophils < 0.45 X 109/L
      Lymphocytes 1.0-4.0 X 109/L
      Monocytes 0.1-1.0 X 109/L
WHITE BLOOD CELLS & DIFFERENTIAL
Albumin (serum) 35-50 g/L
Alkaline phosphatase (serum) 38-126 U/L
Aminotransferase (transaminase) (serum)
      Alanine (ALT; SGPT) 17-63 U/L
      Aspartate (AST; SGOT) 18-40 U/L
Gamma glutamyl transferase
     Female 10-30 U/L
      Male 10-48 U/L
Ammonia (plasma) 9-33 mmol/L
Amylase (serum) < 160 U/L
Base excess -2 to +2 mEq/L
Bicarbonate (HCO3) (serum) 24-30 mmol/L
Bilirubin (serum)
      Direct (conjugated) < 7 mmol/L
      Total < 26 mmol/L
C-Reactive Protein < 8 mg/L
Calcium (serum)
       Total 2.18-2.58 mmol/L
      Ionized 1.05-1.30 mmol/L
C-Reactive Protein < 8 mg/L
Calcium (serum)
      Total 2.18-2.58 mmol/L
      Ionized 1.05-1.30 mmol/L
Chloride (serum) 98-106 mmol/L
Cholesterol (serum) < 5.2 mmol/L
Low density lipoprotein (LDL) < 3.37 mmol/L for low risk
Low density lipoprotein (LDL) < 2.0 mmol/L for high risk
High density lipoprotein (HDL) > 0.9 mmol/L
Cortisol (serum) 160-810 mmol/L
Creatine kinase (CK) (serum) 20-215 U/L
Creatinine (serum)
      Female 50-90 mmol/L
      Male 70-120 mmol/L
Ferritin
      Female 11-307 µg/L
      Male 24-336 µg/L
Folic (Folate) > 15 nmol/L
Follicle-stimulating hormone 1.5-12.4 IU/L
Glucose fasting (serum) 3.3-5.8 mmol/L
Glucose random 3.8-11.1 mmol/L
Hemoglobin HB A1C 4-6%
Iron (serum 11-32µmol/L
Lactate (serum) 1-1.8 mmol/L
Lactate dehydrogenase (LDH) (serum) 95-195 U/L
Lipase (serum) < 160 U/L
Lithium 0.6-1.2 mmol/L
Magnesium (serum) 0.75-0.95 mmol/L
Osmolality (serum) 280-300 mmol/kg
Oxygen saturation (arterial blood) (SaO2) 96-100%
PaCO2 (arterial blood) 35-45 mmHg
PaO2 (arterial blood) 85-105 mmHg
pH 7.35-7.45
Parathyroid hormone (PTH) 1.6-9.3 pmol/L
Phosphorus (inorganic)(serum) 0.8-1.5 mmol/L
Potassium (K) (serum) 3.5-5.0 mmol/L
Prolactin 4-30 µg/L
Prostate Specific Antigen (PSA) 0-4 µg/L
Protein (serum)
      Total 60-80 g/L
      Albumin 35-50 g/L
Sodium (Na) (serum)  135-145 mmol/L
Thyroid-stimulating hormone (sensitive)  0.4-5.0 mU/L
T3 (free)  3.5-6.5 pmol/L
T4 (free)  8.5-15.2 pmol/L
Total Iron Binding Capacity (TIBC)  45-82 µmol/L
Transaminase – see Aminotransferase
Triglycerides (serum)  < 1.7 mmol/L
Troponin T (TnT)  < 0.01mg/L
Urea nitrogen (BUN) (serum)  2.5-8.0 mmol/L
Uric acid (serum)  180-420 mmol/L
Vitamin B12  133-674 pmol/L
CHEMICAL CONSTITUENTS

CEREBROSPINAL FLUID

Cell count < 10 x 106/L
Glucose 2-4 mmol/L
Leucocytes 0.5×106/L
Lymphocytes 0
Polymorphs < 5×106/L
Proteins (total) 0.20-0.45 g/L
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URINE

Calcium < 7.3 mmol/day
Chloride 110-250 mmol/day
Creatinine 6.2-17.7 mmol/day
Glucose 0 mmol/L
Osmolality 100-1200 mOsm/Kg
Potassium 25-120 mmol/day
Phosphorus 13-42 mmol/24 hours
pH 4.8-7.5
Protein < 0.15 g/day
Sodium 25-260 mmol/day
Sodium (random) 20-230 mmol/L
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