Q. What do high readings in kidney function tests indicate?

Answered by Dr. Anshul Varshney and medically reviewed by Dr. Sneha Kannan

 

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Hi doctor,

I am scheduled for extracorporeal shock wave lithotripsy (ESWL) to treat a kidney stone that was discovered through testing for gross hematuria. My pre-operative blood work came back with a number of readings that were flagged as high. It includes Alpha-1-acid glycoprotein (AGP) 17, blood urea nitrogen (BUN) 25, creatinine level 1.3, calcium 10.3 and Na is 148. Is this anything should I be concerned about? Should I see a nephrologist prior to the ESWL? Or do you think that it is fine to proceed with the treatment as planned?


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Dr. Anshul Varshney
M.B.B.S., M.D. MEDICINE
Critical Care Physician, Diabetology, General Medicine, Internal Medicine, Medical Gastroenterology,

Hello,

Welcome to icliniq.com.

Your high readings in kidney function tests are probably attributed to the kidney stone that you are having. Any stone present in kidney that is causing hematuria is very likely to cause transient rise in creatinine levels and alter the kidney function test too.

This is the reason for the stone need to be removed else it would cause permanent kidney damage. I suppose there is no need to see a nephrologist at this point. Once your stone is removed, your kidney function would dramatically improve within a matter of few weeks.

However, I would still need to know the location of the stone? What is the size of the stone and any hydroureteronephrosis associated? If possible just attach your ultrasound or CT report. I will get my answers from the report and would help you with my final comment.

 

Hello doctor,

Just now I talked with my urologist who concurred and I have decided to go as planned. My kidney stone is 1.2 cm as showed on CT and is located in the lower right kidney. Thank you.

 

Dr. Anshul Varshney
M.B.B.S., M.D. MEDICINE
Critical Care Physician, Diabetology, General Medicine, Internal Medicine, Medical Gastroenterology,

Hello,

Welcome back to icliniq.com.

Your stone is quite big in size to cause obstructive uropathy. I suppose you should get the procedure done as planned and write back to me again with fresh kidney function test report.

If it does not improve you would require a DMSA scan (radionuclide scan uses Dimercaptosuccinic acid) further. Wish you a successful surgery.

 
 
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