19j Laboratory reference values

White cell count (WCC)

4.0–11.0×10⁹/l

Red cell count (RCC)

Men: 4.5–6.5×10¹²/l

Women: 3.9–5.6×10¹²/l

Haemoglobin

Men: 13.5–18g/dl

Women: 11.5–16.0g/dl

Packed cell volume (PCV) or haematocrit

Men: 38.5–50.1%

Women: 36.0–44.5%

Mean cell volume (MCV)

76–97fl

Mean cell haemoglobin (MCHC)

32.7–34.6 g/dl

Neutrophils

2.0–7.5×10⁹/l 40–75% WCC

Lymphocytes

1.3–3.5×10⁹/l 20–45% WCC

Eosinophils

0.04–0.44×10⁹/l 1–6% WCC

Basophils

0.0–0.1×10⁹/l 0–1% WCC

Monocytes

0.2–0.8×10⁹/l 2–10% WCC

Platelet count

150–400×10⁹/l

Reticulocyte count

25–100×10⁹/l 0.8–2% RCC*

Erythrocyte sedimentation rate (ESR)

Depends on age

International normalized ratio (INR)

0.8–1.2

Ranges for warfarin therapy depend on indication

Prothrombin time (PTT)

12–17 sec.

Factors I, II, VII, X

Activated partial thromboplastin time

28–40 sec.

Factor VIII, IX, XI, XII

Red cell folate

180–300 ng/ml

Adrenocorticotrophic hormone

P

<80ng/l

Alanine aminotransferase (ALT)

P

5–35iu/l

Albumin

P

35–50g/l

Alkaline transaminase (AST)

P

30–150u/l

α-amylase

P

0–180u/dl

Aspartate transaminase (AST)

P

5–35iu/l

Bicarbonate

P

24–30mmol/l

Bilirubin

P

3–17μmol/l

Calcium (total)

P

2.12–2.26mmol/l

Creatine kinase (CK)

P

Men: 25–195iu/l

Women: 25–172iu/l

Creatinine ( see Chapter 8d)

P

70–≤150μmol/l

Ferritin

P

12–200μg/l

Folate

P

2.1μg/l

Follicle stimulating hormone (FSH)

P/S

2–8u/l>25u/l post menopause

Gamma-glutamyl transpeptidase (GGT, γGT)

P

Men: 11–51iu/l

Women: 7–33iu/l

Glucose (fasting)

P

3.5–5.5mmol/l

Iron

S

Men: 14–31μmol/l

Women: 11–30μmol/l

Luteinizing hormone (LH)

P

3–16u/l

Osmolality

P

278–305mosmol/kg

Phosphate (inorganic)

P

0.8–1.45mmol/l

Potassium

P

3.5–5.0mmol/l

Prolactin

P

Men: <450u/l

Women: <600u/l

Prostate specific antigen (PSA)( see p.186)

P

0–4ngrams/ml

Protein (total)

P

60–80g/l

Sodium

P

135–145mmol/l

Thyroxine (T₄)

P

70–140nmol/l

Total iron binding capacity

S

54–75μmol/l

Triglyceride

P

0.55–1.90mmol/l

Urate

P

Men: 210–480μmol/l

Women: 150–390μmol/l

Urea

P

2.5–6.7mmol/l

Vitamin B₁₂

S

0.13–0.68nmol/l (>150ng/l)