Sodium, Quantitative, Urine

CERNER / EPIC MNEMONIC: RU/NA (random urine); U/NA (24-hour urine)

Urine Sodium Random; Urine Sodium Timed

CPT CODE: Random = 84300; Timed = 84300, 81050
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: Stat: 1 hour (random urine only); Routine: 8 hours
SPECIAL INSTRUCTIONS: For timed urine collection, instruct the patient to void at the beginning of the collection period and discard the specimen. Then collect all urine including the final specimen voided at the end of the collection period. Containers must be labeled with patient`s full name, room number, date and time collection started, and date and time collection finished.

Random Sterile 80 ml specimen container; Timed 24 hour urine container (Bottle #1) with no preservative


Random or 24-hour urine

MINIMUM VOLUME: Random urine: 1 mL; Timed urine: Submit entire urine collection to the laboratory.
HANDLING INSTRUCTIONS: Refrigerate during collection.
REFERENCE RANGE: Random urine: None established; Timed urine: Newborn to 1 year: 0-4 mmol/24 hours; 1-15 years: 40-180 mmol/24 hours; 15 years to adult: 80-200 mmol/24 hours
TEST SYNONYM(S):Na, Urine; Urine Na; Urine Sodium