![]() ![]() If the BUN/creatinine ratio is high, it may suggest a problem with the kidneys ability to function correctly, a condition called renal impairment. Typically, the ratio is between 10:1 and 20:1, with a slightly higher ratio in older adults. This can result in a creatinine level above normal range, but this has nothing to do with kidney function. The ratio of BUN/creatinine is an indicator of kidney health. It causes the body to make more creatinine than normal. People take this when they have very high triglyceride levels or a high risk for heart disease. Fenofibrate (Tricor)įenofibrate (Tricor) lowers triglyceride levels and improves cholesterol. These include cephalexin (Keflex), cefuroxime (Ceftin), and cefaclor (Ceclor). But the good news is that none of the commonly prescribed oral cephalosporins would falsely elevate creatinine. ![]() Studies show that IV (intravenous) cefoxitin and cefazolin can falsely elevate creatinine levels. ![]() Some of them can interfere with the creatinine blood test. IV cephalosporin antibioticsĬephalosporin antibiotics treat skin infections, ear infections, UTIs, and respiratory tract infections. Creatinine levels will usually return to normal when someone stops taking it.įamotidine (Pepcid) and ranitidine (Zantac) - two related heartburn medications - don’t cause the same false elevations of serum creatinine. Cimetidine is a common cause of a falsely elevated creatinine test, according to a 2012 review of related research.Ĭimetidine can increase the level of creatinine by about 15% in people who have normal kidney function. It decreases the amount of creatinine the body clears but doesn’t harm the kidneys. Cimetidine (Tagamet)Ĭimetidine (Tagamet) is an acid blocker that people take for acid reflux and heartburn symptoms. In one study of people who had a kidney transplant, taking trimethoprim caused false increases in the creatinine level even though the kidneys were otherwise working normally. And this may elevate your creatinine blood test even though your kidneys are working perfectly fine. This medication causes the body to retain more creatinine than you normally would. Sulfamethoxazole/trimethoprim (Bactrim) is an antibiotic that people take for urinary tract infections (UTIs), skin infections, and some upper respiratory infections. Sulfamethoxazole/trimethoprim (Bactrim/Septra) ![]()
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