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