Sodium

Test Code

NA, ENA

Alias/See Also

NA, Sodium, Electrolytes, ENA, Epoc Sodium

CPT Codes
84295

Preferred Specimen

Light GREEN (PST)

Other Acceptable Specimens

DKGRN (Dark Green Whole Blood)
RED (RED),
Gold (SST)
Heparinzed Syringe (Whole Blood) for EPOC or WB testing methods

Specimen Stability

Serum/plasma: Use fresh sample for analysis when possible. Separate serum or plasma from the red blood cells as soon as possible.
Stable in serum/plasma for at least one week when stored at 2 - 8°C.
Store the samples in a stoppered tube if analysis is delayed.

Methodology
ISE Module

Setup Schedule

24x7

Reference Range

< 3 Months Age: 132-142 mmol/L Critical: <120 mmol/L; > 160 mmol/L
>3 Months Age: 135-145 mmol/L Critical: <120 mmol/L; > 160 mmol/L

Clinical Significance

Blood sodium testing is used to detect abnormal concentrations of sodium, termed hyponatremia (low sodium) and hypernatremia (high sodium).

It may be ordered to determine if a disease or condition involving the brain, lungs, liver, heart, kidney, thyroid, or adrenal glands is causing or being exacerbated by a sodium deficiency or excess.

Performing Laboratory
CRMC Laboratory
CCMC Laboratory
CCI Laboratory
FHSH Laboratory
EPOC POCT at CRMC and CCMC

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.