pH, Body Fluid
Test Code
5367
83986
Clinical Significance
pH, Body Fluid - This test is intended to assess pH in body fluids. pH can indicate whether a fluid is acidic, alkaline, or neutral. The pH of the blood is approximately 7.4 [1]. The clinical significance of the pH of pleural, pericardial, gastric, and ocular fluids has been described. The clinical significance of pH alterations of many other body fluids is not known.
pH of pleural fluid may be ordered when evaluating the nature of a pleural effusion. A transudative pleural effusion due to pressure-induced fluid leakage typically has a pH in the range of 7.45 to 7.55, whereas an exudative pleural ...
Test Resources
None found for this test
Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Test Details
Methodology
pH Meter (Electrode)
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Reference Range(s)
Not established
Alternative Name(s)
Body Fluid pH
Preferred Specimen(s)
2 mL fluid
Minimum Volume
1 mL
Transport Container
Transport tube
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
- Room temperature: 24 hours
- Refrigerated: 14 days
- Frozen: 6 months
Setup Schedule
2 mL fluid
1 mL
Transport tube
Refrigerated (cold packs)
Room temperature: 24 hours
Refrigerated: 14 days
Frozen: 6 months
Refrigerated: 14 days
Frozen: 6 months