A nurse is collecting data from a client who is 4 hr postoperative following abdominal surgery. The client's blood pressure is 90/60 mm Hg. Which of the following actions should the nurse take first?

Choice A reason: Shaving the client from axillae to groin is not necessary, as it has no relation to the procedure and can cause skin irritation or infection.

Choice B reason: Administering a cleansing enema is not required, as it does not affect the upper gastrointestinal tract that is examined by the procedure. The client should fast for at least 6 hours before the procedure to ensure an empty stomach.

Choice C reason: Having the client drink contrast medium is not indicated, as it can interfere with the visualization of the mucosa and lesions by the endoscope. The client may receive a local anesthetic spray or gargle to numb the throat and a sedative to relax and reduce discomfort during the procedure.

Choice D reason: Ensuring the signed consent is in the medical record is an essential action, as it indicates that the client has been informed about the purpose, risks, benefits, and alternatives of the procedure and has agreed to undergo it voluntarily.

Choice A reason: Withholding the medication if the systolic blood pressure is less than 90 mm Hg is an appropriate action, as propranolol is a beta-blocker that can lower blood pressure and cause hypotension, which can impair tissue perfusion and cause dizziness, fainting, or shock.

Choice B reason: Requesting a dosage increase if the apical heart rate is less than 60/min is an inappropriate action, as propranolol can slow down the heart rate and cause bradycardia, which can lead to fatigue, weakness, or cardiac arrest. The nurse should monitor the apical pulse before administering propranolol and withhold it if it is less than 60/min.

Choice C reason: Informing the client to expect increased hair growth is an incorrect statement, as propranolol does not cause hypertrichosis or excessive hair growth. However, another beta-blocker, minoxidil, can cause this side effect.

Choice D reason: Administering the medication with an antacid is not an appropriate action, as antacids can interfere with the absorption of propranolol and reduce its effectiveness. The nurse should administer propranolol on an empty stomach or with food that does not contain antacids.