cholecystitis. Jaundice and vomiting are signs of cirrhosis of the liver. Rectal bleeding or a change in bowel habits may indicate colorectal cancer. 134.A patient receives atropine, an anticholinergic drug, in preparation for surgery. The nurse expects this drug to affect the GI tract by: a) increasing gastric emptying b) relaxing pyloric and ileocecal sphincters c) decreasing secretions and peristaltic action d) stimulating the nervous system of the GI tract: c) decreasing secretions and peristaltic action The parasympathetic nervous system increasing motility and secretions and relaxing sphincters to promote movement of contents. A drug that blocks this activity decreases secretions and peristalsis, slows gastric emptying, and contracts sphincters. The enteric nervous system of the GI tract is modulated by sympathetic and parasympathetic influence
135.The patient receiving chemotherapy rings the call bell and reports an onset of nausea. The nurse should prepare a prn dose of which of the following medications? C) Ondansetron (Zofran) Ondansetron is a 5-HT3 receptor antagonist antiemetic that is especially effective in reducing cancer chemotherapy-induced nausea and vomiting. 136.A patient reports having dry mouth and asks for some liquid to drink. The nurse reasons that this symptom can most likely be attributed to a common adverse effect of which of the following medications? A) Digoxin (Lanoxin) B) Cefotetan (Cefotan) C) Famotidine (Pepcid) D) Promethazine (Phenergan): D) Promethazine (Phenergan) A common adverse effect of promethazine, an antihistamine antiemetic agent, is dry mouth; another is blurred vision. 137.A patient scheduled to undergo an abdominal ultrasonography is advised to do which of the following?
B) Avoid eating of solid food for 6 to 8 hours before the test. For a patient who is scheduled to undergo an abdominal ultrasonography, the patient should restrict herself from solid food for 6 to 8 hours to avoid having images of her test obscured with gas and intestinal contents. Ultrasonography records the reflection of sound waves. Strenuous exercises, the consumption of sweets, and exposure to sunlight do not affect the results of the test in any way.
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