HIDA Scan - Preparation Requirements
TOTAL DURATION OF STUDY:
Approximately 60 minutes per image.
Not contraindicated but clear clinical indication needs to be specified. ACR–SPR Practice Guideline for Imaging Pregnant or Potentially Pregnant Adolescents and Women with Ionizing Radiation
Morphine must be stopped. Infants should be started on Phenobarb 5 days prior to scan to optimize sensitivity.
All radiology required.
To permit timely gallbladder visualization, the adult patient must have fasted for a minimum of 2 and preferably 6 h before administration of the radiopharmaceutical. Children should be instructed to fast for 2–4 h, whereas infants need to fast for only 2 h before radiotracer injection. In the latter group, clear liquids are permissible, if medically necessary. However, fasting for longer than 24 h (including those on total parenteral nutrition), can cause the gallbladder not to fill with radiotracer within the normally expected time frame. Disregard of the above guidelines may result in a false-positive non-visualization of the gallbladder. Patient should bring a fatty meal for after scan.
Patient is encouraged to drink water prior and during study