Why do they do Upper GI ?

The upper GI is generally used to rule out structural abnormalities & aspiration.

aspiration is when liquid gets into the lungs- there is a test for this called the Swallow Study. It looks at the mechanics of baby swallowing and watches to see if liquid is getting into lungs when drinking a bottle. This is different than an Upper GI. Upper GI is not to determine reflux bcse it’s a snap shot in time- so if baby is not actually refluxing at the time of the Upper GI this does not mean that baby doesn’t have reflux- it just means baby didn’t happen to reflux at the time of the Upper GI.