Re: Abnormal blood test results
IBS is sort of a garbage can dx. Meaning, if you've got symptoms but the tests for other diagnoses come back negative, it's probably IBS.
Abnormal inflam markers do not signal IBS. But, they also do not exclude it. Elevated inflam markers in the blood are quite common, and can be from a number of different possible sources. One possible source is the gut. If there is inflam in your gut, the endoscopy may find it. Ask your doc if he will do several biopsies. These are helpful for finding microscopic-type inflammation.
It is possible to have IBS with elevated inflam markers. It is also possible to have a gut problem that is resulting in inflammation. The source can be infection, food allergy/intolerance, or one of any number of inflammatory bowel diseases.
Be glad your doc is one who is going the distance with testing. So many folks with symptoms are simply dxd off the top with IBS -- when, maybe it is, maybe it isn't.