What is the minimum height for hanging a bag of barium while performing a BE?

When performing a barium enema (BE), the positioning of the barium bag is crucial for ensuring proper flow into the colon. The minimum height for hanging the barium bag is set to provide adequate gravitational force to facilitate the movement of the contrast medium down the tubing and into the patient. Hanging the barium bag at this minimum height of 45 cm ensures that there is enough pressure to prevent any obstruction and to promote an even distribution of barium during the procedure.

This height allows for optimal introduction of the barium while minimizing discomfort for the patient and ensuring effective imaging results. Proper height positioning aids in achieving the desired flow rate, which is vital for a successful exam. If the bag were hung lower than this recommended height, it could hinder the flow of barium, causing complications during the examination.