Sodium, Timed, Urine

Message

Performed at NCMC for NLMC

Test Code

24 Hour Urine Sodium/TUNA - NOCO

CPT Codes
84300

Preferred Specimen

24 hour Urine Collection - Entire specimen or 10 mL well mixed aliquot

Minimum Volume

0.5 mL

Instructions

Collect urine for 24 hours.
Refrigerate specimen during collection.
Starting and ending times of collection are required for processing.
Total Volume is required for processing.

Specimen Stability

Specimen Type	Temperature	Time
Urine	Refrigerated	48 hours

Methodology

Setup Schedule

Monday through Sunday; Continuously

Report Available

Same day

Reference Range

Refer to the Chemistry Reference Range and Critical Results documents in the Resources file on the facility test directory page.

Performing Laboratory
North Colorado Medical Center Laboratory

Last Updated: August 13, 2026

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.