Sodium, Feces [8833X]

Test Code
NAFEC

CPT Codes
84302

Preferred Specimen
10 mL liquid stool submitted in a sterile, leak-proof container

Minimum Volume
3 mL

Other Acceptable Specimens
10 mL aliquot of 24 hour, 48 hour, or 72 hour liquid stool

Instructions
Submit frozen sample of liquid feces. Keep refrigerated during collection. Liquid stool is the only acceptable specimen for this test. Place 10 mL (3 mL minimum) random liquid stool in a plastic, leak-proof container, freeze, and ship frozen. 10 mL aliquot of 24-hour, 48-hour, or 72-hour liquid stool specimens are acceptable.

Note: Sample must be shipped frozen to reduce odor during shipping and to minimize the risk of the container rupturing due to gas accumulation.

Transport Temperature
Frozen

Specimen Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Stool received in paint cans • Formed stool • Specimen received refrigerated

Methodology
Flame Photometric

Setup Schedule
Set up: Sun-Fri; Report available: 2 days

Reference Range
See Laboratory Report

Clinical Significance
Sodium, stool, is useful in evaluating electrolyte loss in diarrhea and malabsorption states.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



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.