ATI RN
ATI Gastrointestinal System
1. The most important pathophysiologic factor contributing to the formation of esophageal varices is:
- A. Decreased prothrombin formation
- B. Decreased albumin formation by the liver
- C. Portal hypertension
- D. Increased central venous pressure
Correct answer: C
Rationale: Portal hypertension is the most important pathophysiologic factor contributing to the formation of esophageal varices.
2. Which of the following factors is believed to be linked to Crohn’s disease?
- A. Constipation
- B. Diet
- C. Hereditary
- D. Lack of exercise
Correct answer: C
Rationale: Crohn's disease is believed to have a hereditary link, with genetic factors playing a significant role in its development.
3. In a client with Crohn’s disease, which of the following symptoms should not be a direct result from antibiotic therapy?
- A. Decrease in bleeding
- B. Decrease in temperature
- C. Decrease in body weight
- D. Decrease in the number of stools
Correct answer: C
Rationale: Decrease in body weight is not a direct result of antibiotic therapy but may occur due to the underlying disease process.
4. The nurse is reviewing the record of a client with Crohn’s disease. Which of the following stool characteristics would the nurse expect to note documented in the client’s record?
- A. Chronic constipation
- B. Diarrhea
- C. Constipation alternating with diarrhea
- D. Stool constantly oozing from the rectum
Correct answer: B
Rationale: Crohn’s disease is characterized by nonbloody diarrhea of usually not more than four to five stools daily. Over time, the diarrhea episodes increase in frequency, duration, and severity. Chronic constipation (Choice A), constipation alternating with diarrhea (Choice C), and stool constantly oozing from the rectum (Choice D) are not characteristics typically associated with Crohn’s disease.
5. 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.
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