Can you be too fat for a digital rectal exam?

Yes, a digital rectal exam is done using a CT scanner. Without even going into how much radiation a large patient will recieve, there is a weight limit on the table and the hole that the person has to fit through is only so big.

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A digtal rectal exam has nothing to do with a CT scanner.

Digital, in this case, refers to the finger (a digit).

It is a rectal exam performed with the examiner's finger.

If the patient is particularly heavy, it certainly makes it more

difficult to perform a digital rectal exam effectively, but it can still be done.