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High bun and creatinine levels in children

A 40-year-old member asked:
Dr. Gurmukh Singh
Pathology 49 years experience
Actual values: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that.... Read More
Dr. Gurmukh Singh
Pathology 49 years experience
Need numbers: It would help to have the actual numbers. The doctor who ordered these tests would be in a better position to advise as s/he knows your health status.

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A female asked:
Dr. Ed Friedlander
Pathology 44 years experience
No: Low creatinine never means anything bad. Reference ranges are set so that a few percent of healthies fall outside arbitrarily. The ratio could be up i... Read More
Dr. Fred McCurdy
Pediatric Nephrology and Dialysis 45 years experience
BUN/Creat Ratio: I personally would not worry about it since the high ratio is due to a slightly elevated BUN. This might be due to a diet high in non-essential amino... Read More
A 36-year-old member asked:
Dr. Benjamin Kalm
Pediatrics 18 years experience
BUN/Cr Ratio: The most common cause of a high blood urea nitrogen (BUN) to creatinine ratio is dehydration. A ratio over 20 indicates low intravascular volume. The ... Read More
A 40-year-old female asked:
Dr. Gurmukh Singh
Pathology 49 years experience
Muscle mass: Serum levels of creatinine depend on renal function, muscle mass and intake of muscles foods. A low creatinine level is of no consequence as long as y... Read More
A 29-year-old female asked:
Dr. Ed Friedlander
Pathology 44 years experience
Why do you ask?: Labs mean nothing in the absence of a clinical history. You might be a vegan bodybuilder. When I was lifting weights every day, my creatinine ran 1.6-... Read More
A 37-year-old female asked:
Dr. Clarence Grim
Endocrinology 57 years experience
Bun/Creat “high”: We are all dying. ;-) But you are not going to die based in this lab test for a long time is my guess. Most likely you were dehydrated when blood dra... Read More
A 31-year-old member asked:
Dr. Gurmukh Singh
Pathology 49 years experience
Depends on drug: Many drugs are excreted by the kidneys and doses of those drugs need to be adjusted in people with elevated BUN/Cr.
A female asked:
Dr. Ed Friedlander
Pathology 44 years experience
That's fine: This is okay for a well-muscled woman, though substantially higher than most women. Ignore what "reference ranges" say -- a few percent of healthies a... Read More
A 36-year-old male asked:
Dr. Mihaela Marin
Internal Medicine 28 years experience
Need more info: Creatinine level in blood depends on the kidney function, but also on the amount of protein intake and muscle mass and activity that you have. You n... Read More
A 39-year-old female asked:
Dr. Gurmukh Singh
Pathology 49 years experience
Dehydration: Were you dehydrated when the blood was drawn. If you were asked to come fasting, you may not have taken enough water. Dehydration affects BUN more tha... Read More

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