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HelpTest ID UPHB pH, Body Fluid
Useful For
Indicating the presence of infections or fistulas
Verifying the effectiveness of treatment to reduce stomach pH
Diagnosing disease states characterized by abnormal stomach acidity
This test is not appropriate for measurement of pleural fluid pH, as that measurement should be made using a blood gas analyzer locally due to specimen stability and transport requirements.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Body FluidOrdering Guidance
To measure pH of a urine specimen, order PHU_ / pH, Random, Urine.
Necessary Information
1. Date and time of collection.
2. Specimen source
-Identify source name from the following list with location (if appropriate):
-Peritoneal fluid (peritoneal, abdominal, ascites, paracentesis)
-Drain fluid (drainage, JP drain)
-Synovial fluid
-Write in source name with source location (if appropriate)
Specimen Required
Container/Tube: Sterile container
Submission Container/Tube: Plastic vial
Specimen Volume: 5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Body Fluid | Refrigerated (preferred) | 7 days |
| Frozen | 7 days | |
| Ambient | 24 hours |
Reference Values
An interpretive report will be provided.
CPT Code Information
83986
Reject Due To
| Spinal fluid | Reject |
| Chest (thoracic) fluid | Reject |
| Thoracentesis | Reject |
| Pleural fluid | Reject |
| Urine | Reject |
Secondary ID
606522Day(s) Performed
Monday through Sunday