CPT Code(s):

84520

Other Names:

Urea Nitrogen (BUN), Blood Urea Nitrogen

Test Includes:

BUN

Specimen Requirements:

Serum(preferred)

Container

SST, Gold

Collection Instructions:

Separate samples as soon as possible

Stability:

Separated Samples are stable at Room temperature for 1 day at 25˚C or less, Refrigerated several days at 2-8˚C, and 6 months when frozen at 0˚C or less.

Rejection Criteria / Special Instructions:

Lipemia will interfere with this assay. Gross hemolysis and Gross Icterus, and improperly labeled specimens.

Methodology:

Beckman AU 480