Urea Clearance

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Testing Laboratories

Waitematā | Northshore Hospital
Waitematā | Waitakere Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

URCL

Test Code (Numeric Code)

0228

Laboratory Handling

Registration

Code: UR24 when 24 hour urine sample is received

Sample Stability

48 hours

Associated Tests

Synonyms

Clearance - Urea

Turnaround Time

2 hours

Specimen Type

  • 24hr Urine
  • Plasma
  • Serum
  • Urine

Specimen Requirements

Tube/Container Type:

Preferred
  • BD Urine Tube (no additive)
  • Lithium Heparin - Non-gel (Green Cap)
Acceptable
  • 24hr Urine Container
  • Specimen Container
  • Plain (Red Top)
  • SST II (Gold Cap)
Preferred Sample Volume (ml)

4

Minimum Sample Volume (ml)

1

No of Samples Required

2

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • BD Urine Tube (no additive)
  • Heparin (Microtainer)
Acceptable
  • Plain(Microtainer)
  • Specimen Container
  • SST(Microtainer)
Minimum Sample Volume (ml)

1

Additional Specimen Information

Both urine and plasma/serum required for this test

Last updated: 18/06/2026