Correct Answer: B

Rationale: Diarrhea is the primary symptom of ulcerative colitis. It is profuse and severe; the client may pass as many as 15 to 20 watery stools per day. Stools may contain blood, mucus, and pus. The frequent diarrhea is often accompanied by anorexia and nausea. Constipation is not a sign or symptom of ulcerative colitis. Steatorrhea (fatty stools) is more typical of pancreatitis and cholecystitis. Alternating diarrhea and constipation is associated with irritable bowel syndrome.

Correct Answer: C

Rationale: The gallbladder receives bile from the liver through the cystic duct. The liver collects bile in the canaliculi. Bile then flows into the common hepatic duct. From the common hepatic duct, the bile can be stored in the gallbladder through the cystic duct. Otherwise, the bile can flow directly into the duodenum by way of the common bile duct.

Correct Answer: C

Rationale: Peripheral tissue perfusion is a major concern in the postoperative period following an abdominal aneurysm repair. Peripheral pulses should be checked frequently during the first 24 hours. A weak or absent pulse may be a sign of embolization or graft closure, especially if accompanied by a pale, cold, mottled extremity; the nurse should immediately report this to the surgeon. Risk for infection, deficient knowledge, and activity intolerance are all important nursing diagnoses in the postoperative period, but peripheral tissue perfusion is the most immediate concern.

Correct Answer: A

Rationale: As the nasogastric tube is passed through the oropharynx, the gag reflex is stimulated, which may cause coughing, gagging, or choking. Instead of passing through to the esophagus, the nasogastric tube may coil around itself in the oropharynx, or it may enter the larynx and obstruct the airway, pulling the tube back slightly will remove it from the larynx; advancing the tube might position it in the trachea. Swallowing closes the epiglottis over the trachea and helps move the tube into the esophagus. Slow breathing helps the client relax to reduce the gag response. The nurse should check the back of the client's throat to note if the tube has coiled. The tube may be advanced after the client relaxes.

Correct Answer: D

Rationale: Sleeping with the head of the bed elevated encourages movement of food through the esophagus by gravity. By fostering esophageal acid clearance, gravity helps keep the acidic pepsin and alkaline biliary secretions from contacting the esophagus. Elevating the foot of the bed does not affect clearance of esophageal acid. Sleeping on the stomach with the head turned to the left will not decrease reflux incidence. Sleeping flat without a pillow under the head does not enhance clearance.