A nurse at a provider's office is instructing a client who is scheduled for an outpatient barium swallow. Which of the following statements by the client indicates an understanding of the teaching?

"I will require an IV catheter for this test."

"I can have clear liquids up to 4 hours before the test.”

"I need to bring a snack because I'll be here all day."

"I should expect light-colored stools after the procedure."