Urea

Pathology category

Biochemistry

Code

UREA

Referral code

Request form

Test information

Primarily used for assessment of renal dialysis adequacy. Also requested along with Renal profile. Although no longer considered necessary for the majority of patients.

Guidelines

Pre-analytical

Reference range

<30D: 0.8 – 5.5 mmol/L
<1Y: 1.0 – 5.5 mmol/L
<16Y: 2.5 – 6.5 mmol/L
Adults: 2.5 – 7.8 mmol/L

Source: Pathology harmony ranges

Tube type

Tube type info

Adults: 5ml Serum SST (gold top)

Special requirements

Minimum volume

Adults: 1 ml

Assay frequency

Run daily at local laboratory

TAT Inpatient (urgent)

1.5 hrs

TAT Inpatient

4 hrs

TAT GP/Outpatient

24 hrs

Referral lab

Local, Clinical Biochemistry