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. You’re preparing a patient with a malignant tumor for colorectal surgery and subsequent colostomy. The patient tells you he’s anxious. What should your initial step be in working with this patient?
- A. Determine what the patient already knows about colostomies.
- B. Show the patient some pictures of colostomies.
- C. Arrange for someone who has a colostomy to visit the patient.
- D. Provide the patient with written material about colostomy care.
Correct answer: A
Rationale: When a patient with a malignant tumor is anxious about colorectal surgery and a colostomy, the initial step is to determine what the patient already knows about colostomies.
3. 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.
4. Lactulose (Chronulac) is prescribed for a client with a diagnosis of hepatic encephalopathy. The nurse would determine that this medication has had a therapeutic effect if which of the following is noted?
- A. Increased red blood cell count
- B. Decreased serum ammonia level
- C. Increased protein level
- D. Decreased white blood cell level
Correct answer: B
Rationale: Lactulose is prescribed for the client with hepatic encephalopathy to reduce bacterial breakdown of protein in the bowel. The medication creates an acidic environment in the bowel and causes the ammonia to leave the bloodstream and enter the colon. Ammonia then becomes trapped in the bowel. Lactulose also has a laxative effect that allows for the elimination of the ammonia.
5. 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.
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