Urea

Blood Sciences Test

Specimen

Serum

Units

mmol/L

Reference Range

AGE	RANGE
neonate	0.8-5.5
infant	1.0-5.5
1-16y	2.5-6.5
adult	2.5-7.8

Test Usage

Test Usage Urea can be disproportionately elevated if the patient is dehydrated or has had a GI bleed. Otherwise it tends to parallel changes in creatinine such that measurement of both parameters is not normally necessary.

Availability

Local test

Turnaround Time

1 day

Can be added on to an existing request up to 4 days following sample receipt

Specimen Labelling Procedure