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Test ID NBLD0184 Urea Nitrogen, Quantitative, 24 HR Urine

AKA

BUN, Urine

Specimen Type/Requirements

24 Hour Urine Container - Urine aliquot from a well mixed and measured 24 Hour Urine (preferred)

24 Hour Urine Container - Complete 24 Hour Urine Collection (also acceptable)


Refrigerate during collection, no preservative, record total volume, mix well before aliquoting. If more than on urine container is collected, use proportional quantities from each well mixed container for the aliquot.

 

See 24-Hour Urine Collection Instructions English

See 24-Hour Urine Collection Instructions Spanish

 

Test may be affected by gross hemolysis, gross icterus and gross lipemia.

Specimen Volume

Preferred Volume     1.0 mL   
 Minimum Volume     0.5 mL  

 

Stability/Transport

Room Temperature     2 days     
 Refrigerated     7 days     Preferred for transport   
 Frozen     1 month     

 

Performed Test Frequency

Monday-Sunday

Methodology

Enzymatic

Performing Lab

Sanford Laboratories Fargo-Core Lab

CPT

84540