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A 40-year-old female asked about a 65-year-old female:

What does it mean low creatinine levels and high bun creatinine ratio?

1 doctor answer1 doctor weighed in
Dr. Gurmukh Singh
Pathology 50 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 you are not emaciated. Paralyzed, or have extensive amputations. High ratio just reflects low creatinine.
Dr. Gurmukh Singh
Pathology 50 years experience
Provided original answer
Wish you good health!
May 11, 2018

Similar questions

CA
A 29-year-old female asked:

What does it mean if your creatinine level is too high 1.16 and your bun/creatinine ratio is very low at a 5?

3 doctor answers5 doctors weighed in
Dr. Ed Friedlander
Pathology 45 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 1.6-1.8. The fellow-pathologists with whom I've discussed it think that reports generated by labs are causing overdiagnosis of renal disease (it's subscience -- "there's an adjustment for race because black people are more muscular.")
A 40-year-old member asked:

What does it mean if both bun & creatinine levels are good, but the ratio is high?

2 doctor answers4 doctors weighed in
Dr. Gurmukh Singh
Pathology 50 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. Having said that, if both creatinine and BUN are normal you do not need to worry about the ratio.
A 40-year-old member asked:

On a metabolic workup, what does a low bun/creatinine ratio reading mean?

1 doctor answer3 doctors weighed in
Dr. Peter Kurzweil
Internal Medicine 51 years experience
Maybe, kidney diseas: In prior answers, explained bun, creatinine, normal ratio, and high ratio. Low ratio means that the BUN is likely low or normal with relation to the creatinine, indicating that there is adequate blood or volume flowing to the kidneys, but the kidneys are impaired or disease in some way. Need a nephrologist - kidney specialist.
A 34-year-old member asked:

During a metabolic workup, what does a high bun/creatinine ratio reading mean?

1 doctor answer3 doctors weighed in
Dr. Peter Kurzweil
Internal Medicine 51 years experience
Decrease in flow.: Bun=blood urea nitrogen, byproduct of proteins ingested, if rise to high levels due to kidney problem, can cause toxic affects on the body. Creatinine= measurement of renal function. Normal bun/cr ratio about 10. The higher that ratio, the more likely it is not intrinsic kidney disease per se, but reduction in blood flow or volume to kidney, like when on strong diuretic-prerenal-reversible.
A 39-year-old member asked:

High bun and bun/creatinine ratio results. What does this mean?

1 doctor answer1 doctor weighed in
Dr. Leto Quarles
Family Medicine 24 years experience
Dehydration: Is most common cause of high BUN with normal creatinine (therefore high ratio). Other causes can be high protein load in the diet, muscle injury or muscle breakdown (bun is formed by the breakdown of proteins). Whether to worry depends on how high the BUN is, and the circumstances when the test was drawn. Talk to the doctor who ordered the test for personalized interpretation.
Last updated Dec 14, 2019

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