Can Hepatitis C And Chronic Liver Disease Cause Low Creatinine Levels?
DTPA scan
Detailed Answer:
Dear XXXXXXX
Greetings from health care magic!!! I am Dr Thakker and shall be answering your question.
I can understand your concerns about your nephews health.
Hepatitis c, Upper GI bleed and chronic liver disease eventually affect the kindney functioning. A known complication called as the hepato-renal syndrome occurs in all the 3 conditions wherein the kidney functions deteriorates with time. Ascites also add to the renal vein compression. All these together lead to an increase in the serum creatinine levels. Thus these conditions do not explain the low serum creatinine levels for your nephew.
There is a possibility of alleged dilution of serum taken for blood tests.
An alternate way of assessing his renal function is to do the DTPA scan. This will estimate the GFR ; glomerular filtration rate. This is the nest marker for renal function even better than serum creatinine.
I hope this helps you out. If you have any more questions, please do not hesitate to write back to me.
Yours sincerely,
Dr Thakker.
Pleaser read the detailed response
Detailed Answer:
Dear XXXXXXX
Thank you for clarifying that the tests were urine and not blood. This makes a major difference in interpretation.
In current day medicine, the renal functions are determined by serum creatinine levels and GFR estimate by DTPA scan. We do not use urine tests unless there is a very specific indication. For eg you wish to estimate the 24 hr urinary protein. In such a scenario we need to know the amount of creatinine in 24 hrs of urine.
I would like the know the exact indication as why the urine tests were done instead of blood. Also if someone is suspecting of diluting his tests, I would rather do a DTPA scan which is foolproof and accurately measure renal function and GFR rather than the unreliable urine tests which depend on the state of protein intake and hydration.
Diet which is very low in protein can lead to lower urinary creatinine levels, so does dehydration. However they do not accurately represent renal functioning which is of paramount importance.
I hope this helps you out. If you have any more questions, please do not hesitate to write back to me.
Yours sincerely,
Dr Thakker.