ATI RN
ATI Gastrointestinal System
1. Which of the following tests is most commonly used to diagnose cholecystitis?
- A. Abdominal CT scan
- B. Abdominal ultrasound
- C. Barium swallow
- D. Endoscopy
Correct answer: B
Rationale: An abdominal ultrasound is the most commonly used test to diagnose cholecystitis.
2. After gastric resection surgery, which of the following signs and symptoms would alert the nurse to the development of a leaking anastomosis?
- A. Pain, fever, and abdominal rigidity.
- B. Diarrhea with fat in the stool.
- C. Palpitations, pallor, and diaphoresis after eating.
- D. Feelings of fullness and nausea after eating.
Correct answer: A
Rationale: Pain, fever, and abdominal rigidity are signs and symptoms of inflammation or peritonitis caused by the leaking anastomosis. Diarrhea with fat in the stool is steatorrhea and is not present in peritonitis. Palpitations, pallor, and diaphoresis after eating are vasomotor symptoms of gastric retention. Feelings of fullness and nausea after eating are not present in peritonitis.
3. Mucosal barrier fortifiers are used in peptic ulcer disease management for which of the following indications?
- A. To inhibit mucus production
- B. To neutralize acid production
- C. To stimulate mucus production
- D. To stimulate hydrogen ion diffusion back into the mucosa
Correct answer: C
Rationale: Mucosal barrier fortifiers stimulate mucus production, which helps protect the lining of the stomach and manage peptic ulcer disease.
4. A client is scheduled for an abdominal perineal resection with permanent colostomy. Which of the following measures would most likely be included in the plan for the client's preoperative preparation?
- A. Keep the client NPO for 2 days before surgery.
- B. Administer kanamycin (Kantrex) the night before surgery.
- C. Inform the client that chest tubes will be in place after surgery.
- D. Advise the client to limit activity.
Correct answer: B
Rationale: Antibiotics are administered preoperatively to reduce the bacterial count in the colon. The client will be placed on a low residue diet to help cleanse the bowel before surgery but typically is not placed on NPO status until 8 to 12 hours before surgery. Laxatives and enemas may also be administered. Chest tubes would not be expected postoperatively. There is no need to limit the client's activity before surgery.
5. Which of the following techniques would the nurse use first to determine if a nasogastric tube is positioned in the stomach?
- A. Aspirating with a syringe and observing for the return of gastric contents.
- B. Irrigating with normal saline and observing for the return of solution.
- C. Placing the tube's free end in water and observing for air bubbles.
- D. Instilling air and auscultating over the epigastric area for the presence of the tube.
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.
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