Urea Nitrogen Timed Urine

Test ID: UUNT

CPT code: 84540
LOINC:
Specimen Type: Timed urine
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: Renal function test; indicate nitrogen balance in hyperalimentation
Components:
UVOL UR Volume;
HOURS Collection Hours;
UUNC Urea Nitrogen Timed;
UUN1 Urea Nitrogen mg/dL
Methodology: Enzymatic

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