Urea Nitrogen, Urine 24

Minimum Volume To Collect (Ml)

5 mL

Stability

Ambient Stability: 2 Days
Refrig Stability: 7 days
Frozen Stability: 1 Month

Preferred Transportation Temperature

REFRIGERATED

Performed

Sun-Sat

Reported

Same day

Methodology

Enzymatic

Testing Location

IHC

Synonyms

Urea
Urine urea nitrogen clearance
24 hour urine urea nitrogen
24-hour urine urea nitrogen

Misc Instructions

SCPECIAL INSTRUCTIONS: Record total volume and duration of collection on container
Patient weight is required for:
1. pediatric patients
2. collection times less than 24 hours SPECIMEN COLLECTION: 24-hour urine collection
no preservatives
refrigerate during collection period

Unit of Measurement

g/d

CPT Codes

84540

LOINC

19153-6
12967-6

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