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HelpTest Code LAB2401A Urea Reduction Ratio
Intended Use
Used to evaluate the amount of urea in the blood before and after dialysis. In addition, it is done to asses the adequacy of dialysis.
Tests in panel:
Pre-Dialysis BUN - LAB2400
Post-Dialysis BUN - LAB2401
Methodology
Photometic/Urease Includes blood urea nitrogen and urea reduction ratio calculation.
Performing Laboratory
RCH-SPH
Specimen Requirements
Preferred: Plasma (heparinized)
Container/Tube: Lt Green/Mint-top (lithium heparin) tube
Acceptable: Serum
Container/Tube: Plain, Red-top or Gold, serum gel tube
Specimen Volume: 1.0 mL (minimum volume 0.1 mL)
Collection Instructions: Both a pre-dialysis and post dialysis specimen are required for this test. Please label samples appropriately. Forward promptly.
Specimen Stability
Ambient: 8 hours
Refrigerated: 48 hours
Frozen (-20ºC): >48 hours
Day(s) Test Set Up
Monday through Sunday
CPT Coding
84520 x 2