The Patient Returns to the Medical Unit After a Pulmonary

The patient returns to the medical unit after a pulmonary angiography. Which instructions by the nurse would help prevent complications from the test?

A) "Lie flat for 8 hours so the injection site does not bleed."
B) "You may sit up for short periods of time, such as mealtime."
C) "To prevent irritation to your throat, try not to cough for 6 hours."
D) "Don't drink anything for 6 hours after the test, as you may choke."