Ordering Recommendation

Refer to aruplab.com/bodyfluids for clinical indications and interpretive information.

Mnemonic
K FL
Methodology

Quantitative Ion-Selective Electrode

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

CSF, Drain, Pancreatic, Pericardial, Peritoneal/Ascites or Pleural fluid.

Specimen Preparation

Centrifuge to remove cellular material. Transfer 1 mL body fluid to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Specimen types other than those listed. Specimens too viscous to be aspirated by instrument.

Remarks

Specimen source must be provided.

Stability

Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 6 months

Reference Interval
Interpretive Data

For information on body fluid reference ranges and/or interpretive guidance visit https://aruplab.com/bodyfluids/

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

84999

Components
Component Test Code* Component Chart Name LOINC
0020155 Potassium, Body Fluid 2821-7
2013038 Potassium Source Fluid Source 31208-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • K Body Fluids
Potassium, Fluid