1 (If you don't know what these, are set them each to 0.5. 2  z is the value that specifies the level of confidence you want in your confidence interval when you analyze your data. 3  Typical levels of confidence for surveys are 95%, in which case z is set to 1.96. 4  E sets the accuracy of your sample proportions.
A hepatobiliary (HIDA) scan is an imaging procedure used to diagnose problems of the liver, gallbladder and bile ducts. For a HIDA scan, also known as cholescintigraphy and hepatobiliary scintigraphy, a radioactive tracer is injected into a vein in your arm.
This can mean that you have pancreatitis. Your doctor may also want you to have a complete blood count (CBC), a liver test, or a stool test. Other tests include an MRI, a CT scan, or an ultrasound of your belly (abdominal ultrasound) to look for gallstones.