Sodium, Urine

Test Code
70289

Alias/See Also
Na, Urine Random; Random Urine Na; Random Urine Sodium;  

CPT Codes
84300

Preferred Specimen
Fresh urine

Minimum Volume
1 mL

Instructions
Obtain specimen in urine collection cup and transfer 2 mL to a screw-top transport tube.


Transport Container
Clean screw-top plastic vial or urine cup.


Transport Temperature
Refrigerated

Specimen Stability
Room Temperature = 5 days
Refrigerated = 5 days
Frozen = n/a

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.


Methodology
ion selective electrode

Setup Schedule
24/7
AU

Report Available
daily

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.


Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439



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.