Ordering Recommendation

May be useful in certain research settings or for estimating tissue stores of potassium.

Mnemonic

K RBC

Methodology

Quantitative Inductively Coupled Plasma-Optical Emission Spectrometry

Performed

Varies

Reported

5-8 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
Collect

Green (lithium or sodium heparin).

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection. Leave RBCs in the original container and replace stopper. Transport 2 mL RBCs in the original collection tube. (Min: 0.7 mL)
Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Tubes containing potassium-based preservatives/anticoagulants. Light green (lithium heparin).

Remarks
Stability

Ambient: Unacceptable; Refrigerated: 1 month; Frozen: Unacceptable

Reference Interval

By Report

Interpretive Data



Compliance Category

Performed by non-ARUP Laboratory

Note

Hotline History

N/A

CPT Codes

84132

Components

Component Test Code* Component Chart Name LOINC
2014042 Potassium, Total, RBC 2824-1
* 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

  • N/A
Potassium, Total, RBC

National Medical Services (NMS)