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HelpTest Code PHBF pH, Body Fluid
Reporting Name
pH, BFUseful For
Gastric fluid pH can help determine if acid production in the stomach is normal.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Body FluidSpecimen Required
Container/Tube: Metal-free container (T173)
Specimen Volume: 5 mL
Additional Information: Indicate specimen source.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Body Fluid | Refrigerated (preferred) | 7 days | |
| Frozen | 7 days | ||
| Ambient | 24 hours |
Reference Values
See Comment
Day(s) and Time(s) Performed
Monday through Sunday; Continuously
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
83986
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| UPHB | pH, BF | 2748-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| U_PHB | pH, BF | 2748-2 |
| SRC18 | Source | 14725-6 |
Clinical Reference
Kaplan LA, Pesce AJ: Clinical Chemistry. Third edition. Mosby-Year Book Inc, 1996, p 823
Method Description
pH meter
Analytic Time
Same day/1 dayReject Due To
| Other | Chest (thoracic) fluid, thoracentesis, or pleural fluid |
Method Name
pH Meter