ATI RN
ATI Gastrointestinal System
1. Risk factors for the development of hiatal hernias are those that lead to increased abdominal pressure. Which of the following complications DOES NOT cause increased abdominal pressure?
- A. Obesity
- B. Volvulus
- C. Constipation
- D. Intestinal obstruction
Correct answer: B
Rationale: Obesity, constipation, and intestinal obstruction can all lead to increased abdominal pressure, which in turn can cause a hiatal hernia.
2. The client has had a new colostomy created 2 days earlier. The client is beginning to pass malodorous flatus from the stoma. The nurse interprets that
- A. This indicates inadequate preoperative bowel preparation.
- B. This is a normal, expected event.
- C. The client is experiencing early signs of ischemic bowel.
- D. The client should not have the nasogastric tube removed.
Correct answer: B
Rationale: As peristalsis returns following creation of a colostomy, the client begins to pass malodorous flatus. This indicates returning bowel function and is an expected event. Within 72 hours of surgery, the client should begin passing stool via the colostomy.
3. A client has a nasogastric tube inserted at the time of abdominal perineal resection with permanent colostomy. This tube will most likely be removed when the client demonstrates:
- A. Absence of nausea and vomiting.
- B. Passage of mucus from the rectum.
- C. Passage of flatus and feces from the colostomy.
- D. Absence of stomach drainage for 24 hours.
Correct answer: C
Rationale: A sign indicating that a client's colostomy is open and ready to function is passage of feces and flatus. When this occurs, gastric suction is ordinarily discontinued, and the client is allowed to start taking fluids and food orally. Absence of bowel sounds would indicate that the tube should remain in place because peristalsis has not yet returned. Absence of nausea and vomiting is not a criterion for judging whether or not gastric suction should be continued. Passage of mucus from the rectum will not occur in this client because the rectum is removed in this surgery. Absence of stomach drainage is not a criterion for judging whether or not gastric suction should be continued.
4. A nurse is assigned to a 40-year-old client who has a diagnosis of chronic pancreatitis. The nurse reviews the laboratory result, anticipating a laboratory report that indicates a serum amylase level of
- A. 45 units/L
- B. 100 units/L
- C. 300 units/L
- D. 500 units/L
Correct answer: C
Rationale: The normal serum amylase level is 25 to 151 IU/L. With chronic cases of pancreatitis, the rise in serum amylase levels usually does not exceed three times the normal value. In acute pancreatitis, the value may exceed five times the normal value. Options 1 and 2 are within normal limits. Option 3 is an extremely elevated level seen in acute pancreatitis.
5. A nurse is reviewing the results of serum laboratory studies drawn on a client who is suspected of having hepatitis. The nurse interprets that an elevation in which of the following studies is the most specific indicator of the disease?
- A. Erythrocyte sedimentation rate
- B. Serum bilirubin
- C. Hemoglobin
- D. Blood urea nitrogen
Correct answer: C
Rationale: Laboratory indicators of hepatitis include elevated liver enzymes, serum bilirubin level, and erythrocyte sedimentation rate is nonspecific test that indicates the presence of inflammation somewhere in the body. Elevated blood urea nitrogen may indicate renal dysfunction. A hemoglobin level is unrelated to this diagnosis.
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