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Pathology User Guide
Bedford Hospital Trust
Page 21 of 85
GSTS PATHOLOGY CLINICAL BIOCHEMISTRY REFERENCE RANGES
FOR ASSAYS CARRIED OUT ON SITE
Albumin
35 - 50 g/L
Alkaline Phosphatase (ALP)
Adult
30 - 120 iu/L
0 - 17 yrs 40 - 390 iu/L
Alphafetoprotein (AFP)
< 7 iu/mL
Alaninne Transferase (ALT)
0 -40 iu/L
Ammonia
Male 15 - 55 mmol/L
Female 11 - 48 mmol/L
Amylase (Serum)
< 100 iu/L
Aspartate Transferase (AST)
10 - 50 iu/L
Bicarbonate (serum)
22 - 29 mmol/L
Bilirubin (Total)
(conjugated)
3 - 20 µmol/L
0 - 5 µmol/L
Beta-2-microglobulin
0.80-2.20 mg/L
Blood Gases:
PH
pCO2
pO2
Bicarbonate
CO2 content
Base excess
Standard Bicarbonate
% O2 saturation
7.35 - 7.45
4.7 - 6.0 kPa
10.0 - 13.3 kPa
22 27 mmol/L
24 - 32 mmol/L
+ 2 mmol/L
22 - 27 mmol/L
No reference range
Calcium (serum)
>2 - 150 yrs 2.20-2.60 mmol/L
0 - 2 yrs 2.35 - 2.72 mmol/L
Corrected Calcium
+ 0.02 mmol/L of Calcium for every g/l variation from an
Albumin of 40 g/L.
eg. Ca 2.80 Alb 35 Corrected Ca 2.90
Ca 2.80 Alb 45 Corrected Ca 2.70
(Invalid if albumin is <20 g/L)
Calcium (urine)
2.5 - 7.5 mmol/d
Carbamazepine
4 - 12 mg/L
Version 1.0
Issued August 2011.
Review August 2012