Curbside Consultation in IBS: 49 Clinical Questions

Brian E. Lacy, PhD, MD

Question 8: Can a Blood Test Diagnose IBS? (continued)

Vincenzo Stanghellini, MD; Giovanni Barbara, MD

As physicians and gastroenterologists, we frequently encounter cases that elude objective evidence of an organic basis of symptoms, thereby leading to the diagnosis of a “functional bowel disorder,” among which irritable bowel syndrome (IBS) is the most common. These diagnoses are somewhat disappointing for us as clinicians and are clearly quite frustrating for the patient, whose expectations of finding a “true cause” for their symptoms vanquish as each diagnostic test returns “negative or normal.” Nonetheless, it is clear in the minds of all of us…