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Just Had A Routine (annual Physical) Blood Test Done. Everything

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Posted on Fri, 11 Aug 2023
Question: Just had a routine (annual physical) blood test done. Everything came back normal except
BUN/Creatinine ratio = 21
BUN is by itself within the range =23
Creatinine looks good as well = 1.12

But ratio is high.
How serious or important this finding?
What should be done ?
I have no other symptoms.
I am 58yo male, generally healthy (just finished running 4 miles in 80F :))
doctor
Answered by Dr. Dr diwashish biswas (3 hours later)
Brief Answer:
Please see detailed answer

Detailed Answer:
Hi
I Am Dr Diwashish
Welcome To Ask A Doctor Service
I think there is some printing mistake, I will explain-
your BUN-23
YOUR CREATININE - 1.12
SO BUN/CREATININE = 23/1.12=
19.00826
And 19 is within normal range
(normal range 10 to 20).

I Hope Your Query is clear now.
Thank You
Above answer was peer-reviewed by : Dr. Saisudha Kotla
doctor
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Follow up: Dr. Dr diwashish biswas (10 hours later)
I am afraid you are not correct: 23/1.12 = 20.535 (my calculator shows)
doctor
Answered by Dr. Dr diwashish biswas (7 minutes later)
Brief Answer:
Please see detailed answer

Detailed Answer:
Hi
I Am Dr Diwashish
Welcome To Ask A Doctor Service
Sorry, my bad.
But even then it is almost normal.
Now if we take BUN/CREATININE LEVEL 20.5, MEANS BORDERLINE HIGH.
SO IT CAN BE SEEN IN CASES OF ACUTE DEHYDRATION, WHERE BUN reaches to upper range, but creatinine may remain normal, because no renal problem.
So BUN/CREATININE COMES SLIGHTLY HIGH.

BUT PRACTICALLY, IF BUN AND CREATININE IS WITHIN NORMAL RANGE, THEN THERE IS NOT MUCH SIGNIFICANCE OF RATIO.

IN CASE of severe enough dehydration, BUN becomes abnormal.
So as in your case BUN and CREATININE both are normal, so nothing to worry about.
Just remain hydrated.

I Hope Your Query is clear now.
Thank You
Note: For more detailed guidance, please consult an Internal Medicine Specialist, with your latest reports. Click here..

Above answer was peer-reviewed by : Dr. Raju A.T
doctor
Answered by
Dr.
Dr. Dr diwashish biswas

Internal Medicine Specialist

Practicing since :2007

Answered : 1024 Questions

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Just Had A Routine (annual Physical) Blood Test Done. Everything

Brief Answer: Please see detailed answer Detailed Answer: Hi I Am Dr Diwashish Welcome To Ask A Doctor Service I think there is some printing mistake, I will explain- your BUN-23 YOUR CREATININE - 1.12 SO BUN/CREATININE = 23/1.12= 19.00826 And 19 is within normal range (normal range 10 to 20). I Hope Your Query is clear now. Thank You