Testing Laboratories
Waitematā | Northshore HospitalWaitematā | Waitakere Hospital
Department
Chemical Pathology
Delphic Registration Code (Alpha Code)
RRS
Test Code (Numeric Code)
8382
Laboratory Handling
Phlebotomy
Specimen type should be written on the label tail-e.g peripheral or Systemic (P), arterial (A), venous(V)
Laboratory
Please see the Additional Specimen Information
Sample Stability
48 hours
Associated Tests
Synonyms
Urea Recirculation Studies
Turnaround Time
2 hours
Specimen Type
- Plasma
- Serum
Specimen Requirements
Tube/Container Type:
Preferred
- Lithium Heparin - Non-gel (Green Cap)
Acceptable
- Plain (Red Top)
- SST II (Gold Cap)
Preferred Sample Volume (ml)
12
Minimum Sample Volume (ml)
3
No of Samples Required
3
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- Heparin (Microtainer)
Acceptable
- Plain(Microtainer)
- SST(Microtainer)
Minimum Sample Volume (ml)
3
Additional Specimen Information
Laboratory instruction:
1. Identify each tube. Ensure you do not tear off labels if specimen type is written on the label tail-e.g peripheral or Systemic (P), arterial (A), venous(V)
2. Label request form ONLY and register –code RRS
3. Produce sample labels using the Label Request at each station. Choose Recirculation Studies. Three labels will print.
4.Place the printed labels on the heparin tubes-ensuring the labels are matched to the appropriate tube. The P label is placed on the peripheral specimen. A on Arterial and V on Venous.
5. Centrifuge
Last updated: 17/06/2026