Gastrointestinal System Nursing Exam Questions

Correct Answer: A

Rationale: The major action of vasopressin is constriction of the splanchnic blood flow. Continuous electrocardiogram and blood pressure monitoring are essential because of the constrictive effects of the medication on the coronary arteries. Options 2, 3, and 4 are not essential items required during the administration of this medication.

Correct Answer: D

Rationale: The correct answer is D: Diaphoresis and diarrhea. Dumping syndrome occurs after gastric surgery when food moves quickly from the stomach to the intestine, causing fluid shifts and leading to symptoms like weakness, dizziness, diaphoresis, flushing, hypotension, abdominal pain, distension, hyperactive bowel sounds, and diarrhea. Choices A, B, and C do not reflect the typical signs and symptoms of dumping syndrome.

Correct Answer: C

Rationale: A Sengstaken-Blakemore tube is inserted into a client with a diagnosis of cirrhosis and ruptured esophageal varices. The tube has an esophageal and a gastric balloon. The esophageal balloon exerts pressure on the bleeding. The pressure of the esophageal balloon is released at intervals to decrease the risk of trauma to esophageal tissues, including esophageal rupture or necrosis. When the balloon is deflated the client may begin to bleed again from the esophageal varices, noted by vomiting of blood.

Correct Answer: A

Rationale: The initial way to determine if a nasogastric tube is in the stomach is to apply suction to the tube with a syringe and observe for the return of stomach contents. Then the pH of the aspirate can be measured. This is the method of choice. One would not irrigate until tube placement is confirmed. Observing for air bubbles when the free end of the tube is placed under water is an unacceptable, unsafe method of determining tube placement. Another method is to instill air into the tube with a syringe while auscultating over the epigastric area. Hearing the air enter the stomach helps ensure proper placement, but the method is not foolproof and is no longer considered an effective or preferred way to determine placement.

Correct Answer: D

Rationale: Intestinal tubes are not irrigated. Injecting air into the tube, applying water-soluble lubricant, and coiling extra tubing are appropriate nursing measures.