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Doctor insights on: Low Bun Creatinine Ratio Causes

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Had bloodwork done. Bun/creatinine ratio, ldh little elevated. Hdlcholesteral a little low. Everything else norm. Can smoking and obese cause this?

Had bloodwork done. Bun/creatinine ratio, ldh little elevated. Hdlcholesteral a little low. Everything else norm. Can smoking and obese cause this?

Yes: Smoking and obesity can cause that cholesterol pattern. The elevated ldh is a little unusual; all labs need to be evaluated further by your physician- depends on many things.
These findings do provide objective evidence for lifestyle modifications needed to start now, so that cardiologists or cardiac surgeons are not needed in the future.
Stop smoking, start exercise- goal 30-45min 5-6 days/wk. ...Read more

Dr. Madhu Kandarpa
2,219 Doctors shared insights

Creatinine (Definition)

Creatinine is a byproduct of creatine phosphate, which is present in muscles. Creatinine levels increase if the ...Read more


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Is a low BUN/Creatinine ratio (8.3) something to worry about if BUN is at 8 mg/dL and Creatinine is at 0.96 mg/dL, both within the normal range?

Is a low BUN/Creatinine ratio (8.3) something to worry about if BUN is at 8 mg/dL and Creatinine is at 0.96 mg/dL, both within the normal range?

No need to worry: 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, your result are in the normal range. ...Read more

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

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

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. ...Read more

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Should I be concerned of a low BUN/Creatinine Ratio on blood work? Is 8 still normal? BUN/Creatinine Ratio 8 LOW Reference 10-22

Okay: 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 your creatinine is under 1.2, you are fine. ...Read more

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What causes elevated bun/creatinine ratio?

What causes elevated bun/creatinine ratio?

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. ...Read more

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What causes elevated bun/creatinine ratio?

What causes elevated bun/creatinine ratio?

Many causes: Blood tests called BUN (blood urea nitrogen) and cr (creatinine) are often checked to help evaluate kidney function. The normal bun/cr ration is about 10:1 to 15:1. Some of the more common causes of an elevated bun/cr ratio are: dehydration, GI bleeding, increased protein intake, small amount of muscle mass, increased muscle breakdown. ...Read more

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What causes an elevated bun/creatinine ratio?

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. ...Read more

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What is the cause of high bun creatinine ratio in children?

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 BUN can also be elevated in people with a high muscle mass. ...Read more

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Low creatinine and elevated bun/creatinine ratio. Please explain?

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. ...Read more

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

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. ...Read more

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

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.") ...Read more

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I am a 31 yr old woman and my BUN/Creatinine ratio is 6. this is low, is it something to worry about. What does it mean?

Do not worry: A low ratio is nothing to worry about as long as your creatinine is below 1.0. See this site for more info.

http://www. Mayoclinic. Org/tests-procedures/creatinine/basics/results/PRC-20014534 ...Read more

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Is it of concern when the bun/creatinine ratio is at 21 but bun is at 18 mg/dl and creatinine is at 0.87 mg/dl with a low mchc of 31.2?

See below: 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, your BUN and creatinine are fine. If you hemoglobin is above 14 gm, do not worry about the MCHC.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

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What causes an elevated bun/creatinine ratio on your lab results?

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. ...Read more

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My bun/creatinine ratio is low and my egfr non african american is low (57.4) the urine itself was normal but dark and cloudy. What's going on?

My bun/creatinine ratio is low and my egfr non african american is low (57.4) the urine itself was normal but dark and cloudy. What's going on?

I'm not worried: This isn't science. The adjustment for race is there "because black people are more muscular than white people". BUN/creatinine ratio being low is never a problem if you feel even semi-well. Dr. F. has given you good advice. Just keep an eye on this and if your actual creatinine is up well above reference range for a time, get evaluated. ...Read more

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"i just had lab work done and got the results and it show that the bun/creatinine ratio is low, it is 10.0 should I have concern I have been retaining fluids, and I have not been urinating very often.

If: If you take no meds, the creatinine was 1.0 or less, and are generally healthy then this ratio is usually of very limited use. It does help establish volume status in people with other things going on. Your doctor really should review these results with you, but in general this ratio low isn't usually a big deal. ...Read more

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Please advise on this blood work result Eos (Absolute) 0.6 HIGH x10E3/uL 0.0-0.4 BUN/Creatinine Ratio 8 LOW 10-22 Vitamin B12 >1999 HIGH pg/mL 211-9?

Please advise on this blood work result Eos (Absolute) 0.6 HIGH x10E3/uL 0.0-0.4 BUN/Creatinine Ratio 8 LOW 10-22 Vitamin B12 >1999 HIGH pg/mL 211-9?

Stop worrying: All three values are common and of no concern. Reference ranges are set so that several percent of healthy folks fall outside on either end. Especially, high b12 is concerning only in one rare illness that you do not have. ...Read more