Barium swallow

This is turning out to be a very busy day. Went to have a Barium swallow performed at Calvary hospital with a paediatric radiologist persent. For this test he laid on an x-ray table and was presented a bottle with barium meal in it to drink. To my surprise he hungrily gulped down this apparently milky substance and a series of chest x-rays were taken of him. These showed that he aspirates a bit (sucks the fluid into his lungs), he has significant gastro-oesophageal reflux and that his oesophagus may be being slightly squeezed by an artery.