According to MedicalHealthTests, a pipida scan is a test designed to determine the functional ability of the gall bladder and related parts in the bile delivery system. The scan uses a tracer material and imaging to examine and enhance the visibility of the bile ducts and gall bladder.
MedicalHealthTests states that the pipida scan requires a patient to fast for several hours before the test is administered. The patient is then given an injection containing the tracer material. The material flows to the liver before being filtered out and collecting in the gall bladder. The patient is then given a drug that stimulates the gall bladder. The entire process can take up to several hours depending on the extent of the blockage.