Is the problem in the GB, per se, or somewhere down the line? Other tests (ultrasound, cat scans
, bloodwork, and if called for, MRCPs
and ERCPs with manometry) should help clarify this, however, and should help point out the problem. Of course, not all of these tests are done, and for good reason: An ultrasound, bloodwork, and a HIDA/CCK is usually good enough to make a call as to whether you're dealing with regular dysfunction or something other. Usually.