Imperial Collage Healthcare

Creatinine (blood)


Test Background
Electrolytes are usually measured as part of a renal profile, which measures sodium, potassium, creatinine and urea. Creatinine is almost completely filtered by the kidneys and increasing serum concentrations correspond with a worsening of the glomerular filtration rate as a function of encroaching kidney failure.


Clinical Indications

  • Suspected renal failure (acute/chronic)
  • Monitoring of patients receiving intravenous fluids
  • Monitoring of established chronic kidney disease


Reference Range

Adult male : 60-125 μmol/L
Adult female : 55-110 μmol/L
Less than 7 days : 30-100 μmol/L
7-21 days : 30-80 μmol/L
21 days-2 years : 20-60 μmol/L
2-5 years : 20-70 μmol/L
5-10 years : 30-80 μmol/L
10-16 years : 40-100 μmol/L


Sample Required
SST (gold top)


Sample Volume
0.5 mL


Turnaround Time
1 day


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