A client with a diagnosis of colon cancer is scheduled for a partial colectomy. She has been prescribed polyethylene glycol (PEG 3350). The nurse knows that polyethylene glycol is indicated for this patient for?

A. Polyethylene glycol (PEG 3350) works by drawing water into the intestines, inducing bowel evacuation. It is commonly used before bowel surgeries or colonoscopies to cleanse the colon of fecal material, ensuring a clear surgical field and reducing risk of contamination. B. PEG is not an antidiarrheal; instead, it promotes bowel movements. Adsorbent antidiarrheals, such as bismuth subsalicylate, work by binding toxins or fluids in the GI tract, which is the opposite of PEG’s intended effect. C. Tetrahydrocannabinoid antiemetics, such as dronabinol, act on cannabinoid receptors to control nausea and vomiting. PEG 3350 has no such properties and is not used for emesis prevention. D. Neurokinin receptor blockers, such as aprepitant, prevent nausea by inhibiting substance P in the brain’s emetic center. PEG does not affect neurokinin pathways and serves solely as a bowel cleansing laxative before gastrointestinal surgery.