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Test Code UNA Sodium Urine, Random LAB444

Test Method

Ion Selective Electrode Poteniometry; Beckman DXC600

Performance

Testing is performed Monday through Sunday.

Typically completed within 2 hours after the specimen
arrives at the testing site.

Reference Values

Reference values are not establish. Results are subject to
interpretation by the clinician.

Useful For

Assessing acid-base balance, water balance, water intoxication,
and dehydration

Specimen Requirement

5 mL urine is required.

CPT Code Information

84300 Chemistry: Sodium; urine

LOINC Code Information

2955-3 Sodium [Moles/Volume] In Urine

Additional Specimen Collection Information

Collect a random urine specimen. Label the specimen
appropriately with two identifiers, patient name and another
identifier, (patient ID number, DOB, etc.) include date and
time of collection. Store the urine specimen refrigerated and
transport to the lab within 48 hours.