true of the use of Tc-99m IDA analogs in biliary tract scintigraphy

Question Number 1456

Question:
the following are true of the use of Tc-99m IDA analogs in biliary tract scintigraphy

a) higher doses are usually needed for higher bilirubin levels
b) higher doses are usually needed for tracers with lower bilirubin threshold
c) Narcotics should be stopped immediately before the exam
d) administration of Cholecystokinin-C-terminal octapeptide is particularly useful in suspected biliary colic
e) imaging should be at 5-10 minute intervals in the first hour


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