Sodium, Random Urine without Creatinine

Test Code

CPT Codes

Preferred Specimen
10 mL random urine, no preservative in a plastic leak-proof container

Minimum Volume
2 mL

Other Acceptable Specimens
Urinalysis transport tube (yellow-top, blue fill line, preservative tube)

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 60 days

Ion Selective Electrode (ISE)

Setup Schedule
Sets up 7 days a week.

Clinical Significance
The excretion of sodium varies with dietary intake. There is a diurnal variation of sodium excretion with excretion being greater during daytime than during the night. Decreased levels are seen in congestive heart failure, excessive sweating, diarrhea, pyloric obstruction, malabsorption and primary aldosteronism. Increased levels may be due to increased salt intake, failure of the adrenal glands, diabetic acidosis, salt losing renal disease and water deficient dehydration.

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.