Urea Nitrogen, Pre-dialysis
Urea Nitrogen, Post-dialysis
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Renal function test, evaluate protein metabolism.
1-11 years: 5 - 20 mg/dL (0.8-3.3 mmol/L), 12-150 years: 8 - 20 mg/dL (1.3-3.3 mmol/L).
Collect specimen in SST tube. For Pre-Dialysis (UNPR) or Post-Dialysis (UNPO) testing, collect specimen in a green top tube.
Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic container and refrigerate.