Test Code

• 2078

Test Synonym

• 24 hour urine Urea Nitrogen

Volume

• 10 mL

Minimum Volume

• 1 mL

Specimen Requirements

• Urine

Container

• 24 Hour Urine Container, Container- Urine

Storage

• Refrigerated

Turn Around Time

• 1 day

Special Instructions

• 10 mL aliquot of entire well- mixed collection in Plastic urine container, no preservative

Additional Information

• Refrigerate the specimen as it is collected. Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Screw the lid on securely. Container must be labeled with patient's full name, date and time collection started, and date and time collection finished. Record total 24-hour urine volume on the request form.

Specimen Stability

• AMB IENT : 2 days REFRIGERATED : 7 days FROZEN: 1 month

Reference Range

• Fasting	Sex	Message Lines	Ref Ranges	Unit of Measure
  		12 - 20 g/24 Hr