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HelpTest Code pH, urine pH, urine
Laboratory Code
LAB3042602
Specimen Requirements
Specimen Type: Urine
Container/Tube: Urine cup
Volume: 100.0 mL
Minimum Volume: 20.0 mL
Collection Instructions: Collect mid-stream urine in preservative-free urine container.
Specimen Stability
| Specimen Type | Urine |
|---|---|
| Ambient | 8 hours |
| Refrigerate | 2 days |
| Frozen | Reject |
Methodology
Potentiometry
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | Not applicable |
|---|---|
| Icterus | Not applicable |
| Lipaemia | Not applicable |
| Others | Not applicable |
Reference Interval
5.0 – 7.5
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Evaluation of systemic acid-base disorders.
Service Code
31007
LOINC Code Information
2765-5
Update
Last updated 11/03/2025