Testing Laboratory
Auckland Te Toka Tumai | Auckland HospitalDepartment
Chemical Pathology
Delphic Registration Code (Alpha Code)
OHB
Test Code (Numeric Code)
0418
Laboratory Handling
Separating
Serum/plasma samples must be separated within 6 hours.
Sample Stability
12 hours at room temperature, 48 hours at 2-8℃, 7 days at -20℃
Associated Tests
Synonyms
Acetone, Ketones, B-hydroxybutyrate, B-OH butyrate, Hydroxybutyrate. Butyrate, OHB, BHB, BOHB
Turnaround Time
3 hours
Specimen Type
- Plasma
- Serum
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)
5
Minimum Sample Volume (ml)
3.5
No of Samples Required
1
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)
0.5
Minimum Sample Volume (ml)
0.5
Additional Specimen Information
0.5 mL Paediatric Microtainer PST Blood (Preferred)
0.5 mL Paediatric Microtainer Plain Blood
0.5 mL Paediatric Microtainer Heparin Blood
Last updated: 24/07/2026