ATI RN
ATI Gastrointestinal System
1. Which of the following conditions can cause a hiatal hernia?
- A. Increased intrathoracic pressure
- B. Weakness of the esophageal muscle
- C. Increased esophageal muscle pressure
- D. Weakness of the diaphragmic muscle
Correct answer: D
Rationale: Weakness of the diaphragmic muscle can lead to a hiatal hernia as it allows part of the stomach to push through the diaphragm into the chest cavity.
2. A 30-year-old woman is admitted to the hospital with complaints of severe abdominal cramping and diarrhea. The nurse evaluates the effectiveness of the patient's intravenous therapy. Which of the following laboratory tests BEST reflects hydration status?
- A. Erythrocyte sedimentation rate.
- B. White blood cell count.
- C. Hematocrit.
- D. Serum glucose.
Correct answer: C
Rationale: Hematocrit is the best indicator of hydration status because it reflects the proportion of red blood cells in the blood. An increased hematocrit indicates dehydration, as the blood becomes more concentrated due to fluid loss. Erythrocyte sedimentation rate (Choice A) is a nonspecific marker of inflammation, not hydration status. White blood cell count (Choice B) is an indicator of infection or inflammation. Serum glucose (Choice D) is used to monitor blood sugar levels, not hydration status.
3. Britney, a 20 y.o. student is admitted with acute pancreatitis. Which laboratory findings do you expect to be abnormal for this patient?
- A. Serum creatinine and BUN
- B. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST)
- C. Serum amylase and lipase
- D. Cardiac enzymes
Correct answer: C
Rationale: Serum amylase and lipase levels are typically elevated in patients with acute pancreatitis.
4. A client has been diagnosed with adenocarcinoma of the stomach and is scheduled to undergo a subtotal gastrectomy (Billroth II procedure). During pre-operative teaching, the nurse is reinforcing information about the procedure. Which of the following explanations is most accurate?
- A. The procedure will result in enlargement of the pyloric sphincter
- B. The procedure will result in anastomosis of the gastric stump to the jejunum
- C. The procedure will result in removal of the duodenum
- D. The procedure will result in repositioning of the vagus nerve
Correct answer: B
Rationale: The Billroth II procedure involves anastomosis of the gastric stump to the jejunum.
5. The nurse is providing discharge instructions to a client following gastrectomy. Which measure will the nurse instruct the client to follow to assist in preventing dumping syndrome?
- A. Eat high-carbohydrate foods
- B. Limit the fluids taken with meals
- C. Ambulate following a meal
- D. Sit in a high-Fowlers position during meals
Correct answer: B
Rationale: To prevent dumping syndrome after a gastrectomy, it is recommended to limit fluids taken with meals to slow down gastric emptying and reduce the symptoms.
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