Reference ranges vary according to individual labs. All values are for adults unless otherwise stated

Full blood count

HaemoglobinMen: 135-180 g/l Women: 115-160 g/l
Mean cell volume82-100 fl
Platelets150-400 * 109/l
White blood cells4.0-11.0 * 109/l
Neutrophils2.0-7.0 * 109/l
Lymphocytes1.0-3.0 * 109/l

Urea and electrolytes


Sodium135-145 mmol/l
Potassium3.5 - 5.0 mmol/l
Urea2.0-7 mmol/l
Creatinine55-120 umol/l
Bicarbonate22-28 mmol/l
Chloride95-105 mmol/l

Liver function tests


Bilirubin3-17 umol/l
Alanine transferase (ALT)3-40 iu/l
Aspartate transaminase (AST)3-30 iu/l
Alkaline phosphatase (ALP)30-100 umol/l
Gamma glutamyl transferase (yGT)8-60 u/l
Total protein60-80 g/l

Other haematology


Erythrocyte sedimentation rate (ESR)Men: < (age / 2) mm/hr Women: < ((age + 10) / 2) mm/hr
Prothrombin time (PT)10-14 secs
Activated partial thromboplastin time (APTT)25-35 secs
Ferritin20-230 ng/ml
Vitamin B12200-900 ng/l
Folate3.0 nmol/l
Reticulocytes0.5-1.5%
D-Dimer< 400 ng/ml

Other biochemistry


Calcium2.1-2.6 mmol/l
Phosphate0.8-1.4 mmol/l
CRP< 10 mg/l
Thyroid stimulating hormone (TSH)0.5-5.5 mu/l
Free thyroxine (T4)9-18 pmol/l
Total thyroxine (T4)70-140 nmol/l
Amylase70-300 u/l
Uric acid0.18-0.48 mmol/l
Creatine kinase35-250 u/l

Arterial blood gases


pH7.35 - 7.45
pCO24.5 - 6.0 kPa
pO210 - 14 kPa

Lipids


Desirable lipid values depend on other risk factors for cardiovascular disease, below is just a guide:

Total cholesterol< 5 mmol/l
Triglycerides< 2 mmol/l
HDL cholesterol> 1 mmol/l
LDL cholesterol< 3 mmol/l