Test Directory

Creatinine

Brown Cap, Gel Clotted	Volume Range 0.1 mL Additive per Container None
Orange Cap	Volume Range 0.1 mL Additive per Container Lithium-heparin

Orange Cap - Paediatric	Volume Range 0.1 mL Additive per Container Lithium-heparin

<7 days: No reference range stated

8-28 days: 15 - 39 µmol/L

29 days - 1 yr: 12 - 31 µmol/L

1 - <2 years: 13 - 28 µmol/L

2 - <3 years: 15 - 34 µmol/L

3 - <4 years: 15 - 42 µmol/L

4 - <7 years: 20 - 44 µmol/L

7 - <12 years: 26- 57 µmol/L

Male: 12 - <13 years: 36 - 67 µmol/L

Male: 13 - < 14 years: 38-76 µmol/L

Male: 14 - < 15 years: 40-83 µmol/L

Male: 15 - < 16 years: 47 - 98 µmol/L

Male: 16 - <17 years: 54 - 99 µmol/L

Male:17 - 18 years: 64 - 111 µmol/L

Male: >18 years: 64 - 111 µmol/L

Female: 12 - <13 years: 36 - 67 µmol/L

Female: 13 - < 14 years: 38-74 µmol/L

Female: 14 - < 15 years: 43-75 µmol/L

Female: 15 - < 16 years: 44 - 79 µmol/L

Female: 16 - <17 years: 48 - 81 µmol/L

Female:17 - 18 years: 50 - 98 µmol/L

Female: >18 years: 50 - 98 µmol/L

RIE

51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA

Telephone (Biochemistry): 0131 242 6806

SJH

Howden Road West
Howden
Livingston
West Lothian
EH54 6PP

Telephone (Biochemistry): 01506 52 3160/1

WGH

Crewe Road South
Edinburgh
EH4 2XU

Telephone (Biochemistry): 0131 537 1910/1

1 day

Also, see entry for estimated GFR.

High levels of paracetamol and N-acetylcysteine may cause falsely low results in other assays including creatinine.