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Miscellaneous pH
Test CodeCPT Codes
83986
Preferred Specimen
Body fluid specimen, including but not limited to: Cerebrospinal Fluid, pleural fluid, pericardial fluid, peritoneal fluid, or synovial fluid. Note fluid type in order comments or on patient specimen label.
Minimum Volume
Instructions
Collect body fluid in a body fluid collection bag or other sterile container and transport to lab. Refrigerate if transport will be delayed. Note fluid type in order comments or on patient specimen label.
This test is for pH measurement on Body Fluids. For Venous pH measurement, order VPH. For Urine pH measurement, order UPH.
Transport Container
Body fluid collection bag or sterile container
Transport Temperature
Specimen Stability
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Methodology
Potentiometric
Setup Schedule
Daily upon receipt
Report Available
Limitations
Clinical Significance
The pH value is a measure of hydrogen ion concentration. A variety of disease processes can alter pH values. Determining the pH value of a body fluid may help characterize the nature of the fluid.