Common Tests

Reference Ranges

Age and sex related reference ranges are available from the laboratory and will be provided with reports, providing sufficient patient information is given when requesting. A sheet containing age-related reference ranges is available on request.

Test	Sample type	Test frequency	Reference range
Sodium	serum	Daily	132 - 144 mmol/L
Potassium	serum	Daily	3.5 - 5.0 mmol/L
Chloride	serum	Daily	95 - 108 mmol/L
Bicarbonate	serum	Daily	24 - 30 mmol/L
Urea	serum	Daily	2.7 - 7.5 mmol/L
Creatinine - female	serum	Daily	40 - 90 µmol/L
Creatinine - male	serum	Daily	60 - 120 µmol/L
Glucose (fasting)†	fluoride	Daily	3.2 - 6.0 mmol/L
Bilirubin	serum	Daily	1 - 20 µmol/L
(Amended) Calcium	serum	Daily	2.10 - 2.65 mmol/L
Magnesium	serum	Daily	0.6 - 1.0 mmol/L
Phosphate	serum	Daily	0.70 - 1.40 mmol/L
Total protein	serum	Daily	60 - 80 g/L
Albumin	serum	Daily	33 - 49 g/L
Globulin	serum	Daily	21 - 38 g/L
Iron	serum	Daily	12 - 26 µmol/L
Urate - female	serum	Daily	< 0.38 mmol/L
Urate- male	serum	Daily	< 0.42 mmol/L
CRP	serum	Daily	< 5 mg/L

^† Low glucose measurements using Point of Care Testing equipment need to be verified by sending a specimen to the laboratory.

Links to Hospital Formulary:

Treatment of hypokalaemia

Treatment of hyperkalaemia

 

(see also Enzymes/Lipids)