Test ID: UNAT
CPT code: 84300
LOINC:
Specimen Type: Timed urine collection
Frequency: Setup: Daily; TAT <24 hrs
Instructions: 5.0mL from a 24 hour urine collection. Refrigerate during collection.
Specify hours and volume of collection.
Text: Workup of volume depletion, acute renal failure, acute oliguria, and
differential diagnosis of hyponatremia.
Components:
UNA1 Sodium mEq/L, Urine;
UNAC Sodium Timed Urine;
UVOL UR Volume;
HOURS Collection Hours
Methodology: ISE