BUN/Creatinine Ratio - The BUN/Creatinine ratio is useful in the differential diagnosis of acute or chronic renal disease. 5. 6. BUN/Cr (S) ratio > 20 (fraction) indicates prerenal causes. Low BUN and Creatinine Ratio: Understanding Your Test Result BUN Test. for more about ARF (acute renal failure) differential diagnosis. Normal BUN is 10 to 20 mg/100 mL and serum creatinine is 0.6 to 1.2 mg/100 mL. An extrarenal problem produces a BUN to serum creatinine ratio of greater than 25:1. 2. First off is the BUN test that evaluates the amount of... Creatinine Test. 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). The BUN to creatinine ratio is a calculated ratio that does not mean anything in regards to kidney disease. Before that, it is essential to go through both tests. BUN/Cr (S) ratio 10 (fraction) indicates renal causes. Reduced renal perfusion, e.g., congestive heart failure, or recent onset of urinary tract obstruction will result in an increase in BUN/Creatinine ratio. In medicine, the BUN-to-creatinine ratio is the ratio of two serum laboratory values, the blood urea nitrogen (BUN) (mg/dL) and serum creatinine (Cr) (mg/dL). You should not be concerned. Reference range for the two parameters is summarized below: Urea is a waste product of protein metabolization, formed in the liver and serves to measure state of … What does BUN-creatinine ratio 26 mean? Bun/creatinine ratio of 25 bun was 23 creatinine,serum 0.93 bun/creatinine ratio of 25 bun was 23 creatinine,serum 0.93 on 06/2012 on 6/2011 ratio was 12 bun was 12 creatinine … Outside the United States, particularly in Canada and Europe, the term urea is often used. BUN and serum creatinine are best interpreted together, comparing the two results. Clinical Significance: The BUN/Creatinine ratio is useful in the differential diagnosis of acute or chronic renal disease.Reduced renal perfusion, e.g. The bun creatinine ratio is a comparison between the concentration of two substances in the blood: creatinine and blood urea nitrogen (or BUN). This is a diagnostic test that can tell a physician much about the health of the kidneys. Increased urea formation also results in an increase in the ratio, e.g., gastrointestinal bleeding, trauma, etc. 4. When the ratio approaches 20:1, it suggests a problem with blood flow to the kidney; this may be caused by conditions such as heart failure or dehydration. Donate Your Car Before The End of The Year For a Tax Benefit We occasionally use this ratio to estimate the degree of hydration of a patient. A normal BUN-to-creatinine ratio is 15:1, according to "Renal Pathophysiology." Reduced renal perfusion, e.g., congestive heart failure, or recent onset of urinary tract obstruction will result in an increase in BUN/Creatinine ratio. Distinguishing features include a bland urine sediment ,3 a urine osmolality of greater than 500 mOsm and a BUN–to–serum creatinine ratio of greater than 20:1 . See also for more about ARF (acute renal failure) differential diagnosis. The BUN/Creatinine ratio is useful in the differential diagnosis of acute or chronic renal disease. 3. Renal failure (acute or chronic) produces a BUN to serum creatinine ratio of 10:1. BUN Creatinine Ratio = BUN / Creatinine BUN and creatinine are measured in serum, usually in mg/dL. A high BUN to creatinine ratio is mostly associated with the following symptoms: Frequent urination Bone and Joint Pains Itching and Swelling (in the extremities) Poor Appetite Fatigue Discolored urine Muscle Cramping Nausea and Vomiting ) produces a BUN to serum creatinine ratio of 10:1 not mean anything regards! 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