Sodium, Timed Urine : 1002660

Test Code
24NA or 1002660

Alias/See Also
Na, Urine; Sodium, Urine

CPT Codes
84300

Instructions
Timed urine without preservative (keep refrigerated).

Transport Container
Submit a 10 mL aliquot (Min. 0.5 mL) of the well-mixed timed urine collection in a screw capped container or in a standard transport tube.

The total volume of the urine in mL and the time period of collection in hours must be provided.

Transport Temperature
Refrigerated.

Specimen Stability
Ambient: 24 hours; Refrigerated: 7 days; Frozen: Acceptable for longer storage

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
No period or volume.

Methodology
Ion Selective Electrodes (ISE) Indirect

Setup Schedule
Sunday - Saturday

Report Available
1 day

Reference Range
40-220 mmol/spec
Reference Range assumes a 24 hour collection.

Clinical Significance
Monitor electrolyte imbalance, abnormal hypertension, dehydration.

Performing Laboratory
med fusion



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.