SODIUM & POTASSIUM, SERUM

Message

Heparin choice is Lithium

Test Code

NA/K

CPT Codes
84295; 84132

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

0.5 mL

Other Acceptable Specimens

or 1 Green tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of serum and red cells. See Specimen Container for appropriate sample type. Separate and refrigerate until tested.

Specimen Stability

2-8°C up to 7 days; Additional storage types not available

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis, lipemia, and icterus interferes

Methodology

Indirect ISE (Ion Selective Electrode)

Setup Schedule

M, T, W, Th, F, Sa, Sun

Reference Range

See individual tests

Clinical Significance

This test is used to identify an electrolyte or acid-base imbalance.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)

Last Updated: April 25, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.