9/26/2023 0 Comments Normal bun creatinine ratioPlease direct any questions regarding coding to the payer being billed. CPT coding is the sole responsibility of the billing party. The CPT codes provided are based on AMA guidelines and are for informational purposes only. In most cases of chronic renal disease, the ratio remains relatively normal. When there is decreased formation of urea, as seen in liver disease, there is a decrease in the BUN/Creatinine ratio. Increased urea formation also results in an increase in the ratio, e.g. If its lower or higher than that, it may mean you have a problem with your kidneys. congestive heart failure or recent onset of urinary tract obstruction, will result in an increase in BUN/Creatinine ratio. Typically, the ratio of BUN to creatinine should be between 10:1 and 20:1. Please Note: If results for BUN and Creatinine are both within the normal reference range, the BUN/Creatinine ratio will not be reported (not applicable).Ĭlinical Significance: The BUN/Creatinine ratio is useful in the differential diagnosis of acute or chronic renal disease. To calculate the new eGFR from a previous Creatinine or Cystatin C result, go to. The eGFR is based on the CKD-EPI 2021 equation. Methodology: Photometric Assay, Calculation Transport: Store serum at 2☌ to 8☌ after collection and ship the same day per packaging instructions included with the provided shipping box.Ĭauses for Rejection: Specimens other than serum improper labeling samples not stored properly samples older than stability limits Gently invert tube 5 times immediately after draw.Reduced renal perfusion, e.g., congestive heart failure, or. Collect and label sample according to standard protocols. The BUN/Creatinine ratio is useful in the differential diagnosis of acute or chronic renal disease.Includes: Blood Urea Nitrogen (BUN), Serum Creatinine, BUN/Creatinine Ratio, Estimated Glomerular Filtration Rate (eGFR)Ĭontainer: Gel-barrier tube (SST, Tiger Top)
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