Urea nitrogen, timed urine

Alphabetical Test listing

Test name:

Test number:

264

Excellian order number:

84540.0

Abbreviation:

UUN

Specimen type:

Urine, 24 hr

Collection container:

Volume:

8mL aliquot from a 24 hr collection

Collection instructions:

Processing instructions:

Measure and record the total urine volume on request and/or aliquot tube.
Mix well
Tranfer an 8.0 mL mixed aliquot in a Urine aliquot transport vial/tube - 10mL (AHL)

Transport container:

Alternate transport container:

24 hr urine collection container, no additive

Transport and stability:

Refrigerated (preferred) - 7 days

Ambient - 2 days

Frozen - 1 month

Reason for rejection:

Performing lab:

AHL - Chemistry: C

Days set up:

Daily

TAT:

1 day

Method:

Enzymatic (Urease)

Reference ranges:

12.0 - 20.0 g/24 hrs

CPT codes:

84540

Date created:

11/30/2001

Revised date:

02/18/2020

Review date:

01/12/2024