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Doctor insights on: Lytes Bun And Creatinine Test

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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 BUN/Creatinine ratio test the same test as a microalblbumin/creatinine ratio test?

Is a BUN/Creatinine ratio test the same test as a microalblbumin/creatinine ratio test?

No: BUN = Blood urea nitrogen, creatinine and albumin are all different chemicals in blood and urine that can be measured. BUN/Creatinine ratio is a blood test. Microablumin/creatinine ratio is a urine test. ...Read more

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I just had a bun test and it came out at 12 is that ok? And my bun/creatinine ratio is 18

Blood Test: A normal BUN level is 7 to 22. So yours is normal. A normal bun/creatinine ratio is 10. A value of 18 usually suggests dehydration. ...Read more

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Just got blood work back. My bun was high at 24. Creatinine was normal at. 75. Are further tests warranted.?

Just got blood work back. My bun was high at 24. Creatinine was normal at. 75. Are further tests warranted.?

What prompted these: Tests? Do you have any symptoms? The creatinine is within normal limits, but evaluation needs assessment of the whole person, not just lab tests. ...Read more

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BUN = 6 Creatinine =. 58 BUN/Creatinine = 10 I read that a 10 warrants further tests to determine if intrinsic kidney damage. Does that apply here?

BUN = 6 Creatinine =. 58 BUN/Creatinine = 10 I read that a 10 warrants further tests to determine if intrinsic kidney damage. Does that apply here?

Just a ratio: Since your BUN is normal and your creatinine is less than 1 which is also normal, you should not worry. Ask your doctor in your follow up visit to review your concerns with you. ...Read more

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I recently had a blood test. The BUN was 10 and creatinine was 1.2. I am a 36 year old male, Asian and am worried about the high creatinine levels?

I recently had a blood test. The BUN was 10 and creatinine was 1.2. I am a 36 year old male, Asian and am worried about the high creatinine levels?

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 need a glomerular filtration test for a better evaluation of your kidney function. ...Read more

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Hi in my cmp test says bun/creatinine ration not applicable? What does it mean? Bad or good?

Hi in my cmp test says bun/creatinine ration not applicable? What does it mean? Bad or good?

Means not done: Not important. BUN & creat are what you need to have normal. It could be because one of the numbers is reported as "less than" e.g. BUN < 5 (less than 5). In this case you cannot calculate the ratio since you cannot use 5. The issue is not important anyways. You do not seem to have a kidney disease. ...Read more

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Creatinine serum 1.5 mg/dl gfr 47-nb bun test 27 how bad is this. Can there be ways to improve on these results. Thank you?

Big picture: Everybody's kidney function declines some with age. I'm good with your BUN especially if you eat a lot of protein. And if you're a mature athlete, this may even be fine; creatinine varies with a man's muscularity. When I was lifting weights daily in my early thirties, my creatinine run 1.5 to 1.6 -- perfectly healthy. ...Read more

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I am 49 year old male in good general. A recent blood test showed bun level at 27 and creatinine level at 1.4. Should I be concerned? What are possible causes?

I am 49 year old male in good general. A recent blood test showed bun level at 27 and creatinine level at 1.4. Should I be concerned? What are possible causes?

Dehydration?: Sounds like dehydration (if no kidney disease) as we grow younger, we cannot rely on our thirst, and have to drink by the clock... Our osmotic receptors get old before we do. ...Read more

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My lab test results says. Bun/ creatinine ratio results 28, units h, reference interval lab 8-20. Can someone please tell me what this means.

What are the results: Of BUN and creatinine? Ratios often distort the meaning of raw 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 one needs to know the actual values to provide an opinion. ...Read more

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I recently had some blood test done. Creatinine came back as 1.6, BUN is 19, glucose on the high side.....all other measurements are witin the range except for anion gap. Anion gap is 13, slightly above range. What does this all mean?

I recently had some blood test done. Creatinine came back as 1.6, BUN is 19, glucose on the high side.....all other measurements are witin the range except for anion gap. Anion gap is 13, slightly above range. What does this all mean?

Hard to say: Without knowing your past medical history and past testing. But from what you mention your testing suggest some element of kidney dysfunction. It's not clear if it's chronic or acute. But you should reach out to your doctor if you have questions too. He/she will know you vest to be able to give you the most accurate description of what's going on. ...Read more

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32 y/o female with creatinine level of 1.01 mg/dL)non-african american) BUN 12 mg/dL. Also insufficient in Vitamin D O25 test (28.9ml). Abnormal?

32 y/o female with creatinine level of 1.01 mg/dL)non-african american) BUN 12 mg/dL. Also insufficient in Vitamin D O25 test (28.9ml). Abnormal?

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 normal. Vitamin D is just borderline low. You may take over the counter vitamin D3 at a dose of about 2000 units/day. ...Read more

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What is the meaning of the following blood test results creatinine from 1.67 down to 0.83. Ast (sgot) 50, bun creat ratio 22.00, est GFR less than 60?

What is the meaning of the following blood test results creatinine from 1.67 down to 0.83. Ast (sgot) 50, bun creat ratio 22.00, est GFR less than 60?

Kidney and Liver T: Egfr (normal >60), creatinine, bun/cr ratio are all lab values to suggest how the kidney function is, ast is an enzyme secreted by the liver, if its elevated there is something wrong with the liver (it varies from mild to severe). Check with your doctor or mentor about the normal values and the abnormal ones. ...Read more

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Neg c-anca & p-anca, but pos pr3 & pos mpo by ELISA 5 consecutive tests. Sed/bun/creatinine good. Neutrophils 76% @ 60 days prednisone. Thoughts?

Neg c-anca & p-anca, but pos pr3 & pos mpo by ELISA 5 consecutive tests. Sed/bun/creatinine good. Neutrophils 76% @ 60 days prednisone. Thoughts?

Biopsy: I am assuming that the clinical presentation justified treatment. In my opinion to go longer on Prednisone or to add other therapy would be helped by renal biopsy with immunofluorescent studies. ...Read more

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Age 65 w/fem. Serum Creatinine 1.02. Bun 8. Ratio 8. Egfr down from 70's to 58. Took Zantac (ranitidine) 150 32 hrs. Prior to blood test. No health concerns. CKD?

Age 65 w/fem. Serum Creatinine 1.02. Bun 8. Ratio 8. Egfr down from 70's to 58. Took Zantac (ranitidine) 150 32 hrs. Prior to blood test. No health concerns. CKD?

I don't think so: With a BUN of 8, anybody worried about their kidneys should be very happy. The lack of real science behind the "EGFR" promotion is showcased by the adjustment for race "because black people are more muscular." Many of us in pathology think this is an attempt by Big Pharma to make healthy people think they are sick. I'd be glad for good health. Creatine's fine for your age. Best wishes. ...Read more