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UUN24
UREA NITROGEN, 24-HOUR URINE

Test Code UUN24 
Test UREA NITROGEN, 24-HOUR URINE 
Methodology Spectrophotometry (SP) 
Description Useful in the diagnosis and treatment of certain renal and metabolic diseases. 
Specimen 10 mL (minimum volume: 1.0 mL) from a 24-hour urine collection in a clean, non-sterile, plastic urine container. No preservative. Refrigerate specimen during collection. Send specimen refrigerated.

NOTE:
1. 24-HOUR VOLUME IS REQUIRED ON REQUEST FORM FOR PROCESSING.
2. Prior to aliquoting specimen, mix specimen well, measure and record volume.
3. Follow "Urine Collection" instructions. 

Reference Values 12 - 20 g/24 hours 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 84540  

Special Instructions