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Miscellaneous Potassium
Test CodeMISK
Alias/See Also
Miscellaneous K+
CPT Codes
84132
Preferred Specimen
Body fluid specimen, including but not limited to: Cerebrospinal Fluid, pleural fluid, pericardial fluid, peritoneal fluid, or synovial fluid. Liquid stool is also acceptable.Note fluid type in order comments or on patient specimen label.
Minimum Volume
1 mL
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 potassium measurement on body fluids. For potassium measurement on serum or plasma, order K. For potassium measurement on urine, order URK.
Transport Container
Body fluid collection bag or sterile container
Transport Temperature
Room Temperature or Refrigeration
Specimen Stability
Room Temperature - 4 hours; Refrigerated - 24 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis; gross viscosity or turbidity
Methodology
Potentiometric
Setup Schedule
Daily upon receipt
Report Available
Upon completion of analysis
Limitations
Cisplatan (Plantinol) can alter potassium levels. This drug is known to treat metastatic testicular tumors, metastatic ovarian tumors and advanced bladder cancer. Also, any cationic surfactant (laxative) is known to alter potassium results.