Testing Laboratory
Auckland Te Toka Tumai | Auckland HospitalDepartment
Chemical Pathology
Delphic Registration Code (Alpha Code)
PLAP
Test Code (Numeric Code)
0333
Laboratory Handling
Laboratory
LabPLUS Special Techniques
Sample Stability
7 days ambient and 2-8°C, 2 months frozen
Synonyms
ALP, heat stable, placental ALP, Heat-stable ALP
Turnaround Time
1 day
Result available within 3 hours, but not outside 0800 -1700 weekdays. If the test is required out of hours, consult on call Chemical Pathologist.
Specimen Type
- CSF
- Plasma
- Serum
Specimen Requirements
Tube/Container Type:
Preferred
- CSF sterile tubes (Routine Analysis)
- Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
- Lithium Heparin - Non-gel (Green Cap)
- Plain (Red Top)
- SST II (Gold Cap)
Preferred Sample Volume (ml)
4
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
- Lithium Heparin - Non-gel (Green Cap)
- Plain (Red Top)
- SST II (Gold Cap)
Preferred Sample Volume (ml)
1
Minimum Sample Volume (ml)
0.5
Pre-testing Requirements
Total Alkaline Phosphatase should be ≥110 U/L for serum/plasma or >5 U/L for a CSF sample. If not, placental Alkaline Phosphatase will not be performed.
Last updated: 01/09/2026