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![]() Urea is removed by the kidneys, but the rate of removal depends on the needs of the body. A plus sign next to the number “” means that the information is found within the full scientific study rather than the abstract. If you feel that any of our content is inaccurate, out-of-date, or otherwise questionable, please leave a comment or contact us at that each number in parentheses is a clickable link to peer-reviewed scientific studies. Our goal is to not have a single piece of inaccurate information on this website. They are continually monitored by our internal peer-review process and if we see anyone making material science errors, we don't let them write for us again. Our science team must pass long technical science tests, difficult logical reasoning and reading comprehension tests. Our science team is put through the strictest vetting process in the health industry and we often reject applicants who have written articles for many of the largest health websites that are deemed trustworthy. Our team comprises of trained MDs, PhDs, pharmacists, qualified scientists, and certified health and wellness specialists.Īll of our content is written by scientists and people with a strong science background. We are dedicated to providing the most scientifically valid, unbiased, and comprehensive information on any given topic. We believe that the most accurate information is found directly in the scientific source. Please direct any questions regarding coding to the payer being billed.SelfDecode has the strictest sourcing guidelines in the health industry and we almost exclusively link to medically peer-reviewed studies, usually on PubMed. 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. congestive heart failure or recent onset of urinary tract obstruction, will result in an increase in BUN/Creatinine ratio. 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.Collect and label sample according to standard protocols.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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