Suggest a detailed history and tests
Welcome to our site.
I am Doctor Mittal
Read your query, that is a very significant question and I appreciate your problem.
I will try my best to answer your query.
The possibilities of development of dark smelly stools in a patient with diabetic nephropathy
and coronary artery
I would like to know if the dark stools are black, or just dark. cause a black smelly stool could mean there is some passage of blood.
Alternatively there is a possibility that the food items he is having are imparting the colour to the stools.
There is a third possibility that he might be on iron tablets or therapy which also imparts a black colour to the stools.
A possibility of gastrointestinal infection
is always present.
I would like to advice a few tests, namely stool routine and occult blood, complete hemogram, and pt/inr. the tests are meant to find out the exact status of the stools as far as infection and passage of blood are concerned. a complete hemogram would give us a clue regarding both, an infection and loss of blood. with a history of bypass, the possibility is strong that he is on blood thinners. I would like to find out just how thin the blood may have become.
can be planned as well, but preferably at a later date, after the current tests are reported and considered.
Meanwhile a proton pump
inhibitor can be initiated along with a mild antibiotic. your regular physician would surely know about that.
I hope this helps you.
Inform the reports mentioned above, so I can be of help further.
Best of luck,