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The increased resistance to urine flow can cause back up into the kidneys, leading to hydronephrosis. [3] The BUN:Cr in postrenal azotemia is initially >15. The increased nephron tubular pressure (due to fluid back-up) causes increased reabsorption of urea, elevating it abnormally relative to creatinine. [3]
Race-based kidney function metrics, particularly normalizing creatinine, pose ethical challenges in diagnosing and managing chronic kidney disease (CKD). While certain racial and ethnic groups are at higher risk, using race as a reference range may reinforce stereotypes and perpetuate health disparities.
A high reading may be due to increased production of creatinine not due to reduced kidney function, to interference with the assay, or to reduced tubular secretion of creatinine. An increase in serum creatinine can be due to increased ingestion of cooked meat (which contains creatinine converted from creatine by the heat from cooking) or ...
The primary sign of augmented renal clearance is an increase in the creatinine clearance well above that which would be considered normal. Commonly, ARC is defined as a creatinine clearance of greater than 130 mL/min, but the effects of increased clearance on therapy are not directly correlated to a specific number.
The kidney is responsible for excreting nitrogenous substances in the urine, so an elevated BUN usually indicates that the kidney is not functioning appropriately. [ 32 ] Urinalysis - After the patient provides a urine specimen , it is sent to the lab for analysis using a variety of methods including urine dipstick testing and microscopic ...
The addition of bicarbonate to the intravenous fluids may alleviate acidosis (high acid level of the blood) and make the urine more alkaline to prevent cast formation in the kidneys; [10] [12] evidence suggesting that bicarbonate has benefits above saline alone is limited, and it can worsen hypocalcemia by enhancing calcium and phosphate ...