ATI RN
Gastrointestinal System Nursing Exam Questions
1. A nurse orientee is preparing to insert a nasogastric tube, and a nurse educator is observing the procedure. Which of the following supplies if obtained by the nurse orientee would indicate a need for further education regarding this procedure?
- A. Half-inch or one-inch tape
- B. Oil-soluble lubricant
- C. A glass of tap water with a straw
- D. A 50-mL catheter tip syringe
Correct answer: B
Rationale: Water-soluble lubricant is used to lubricate 3 to 4 inches of the tube at the insertion end. An oil lubricant is not used because if the tube accidentally goes into the bronchus, pneumonia can develop. Half-inch tape is used to secure the tube after the correct placement is verified. A 50-mL catheter tip syringe is used to aspirate gastric contents to confirm placement. The client will be asked to take a sip of water through a straw to help with the passage of the tube.
2. 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.
3. A client is suspected of having hepatitis. Which diagnostic test results will assist in confirming this diagnosis?
- A. Decreased erythrocyte sedimentation rate
- B. Elevated serum bilirubin
- C. Elevated hemoglobin
- D. Elevated blood urea nitrogen
Correct answer: B
Rationale: Laboratory indicators of hepatitis include elevated liver enzyme levels, elevated serum bilirubin levels, elevated erythrocyte sedimentation rates, and leucopenia. An elevated blood urea nitrogen may indicate renal dysfunction. A hemoglobin level is unrelated to this diagnosis.
4. The nurse develops a plan of care for a client with a T tube. Which one of the following nursing interventions should be included?
- A. Inspect skin around the T tube daily for irritation.
- B. Irrigate the T tube every 4 hours to maintain patency.
- C. Maintain the client in a supine position while the T tube is in place.
- D. Keep the T tube clamped except during mealtimes.
Correct answer: A
Rationale: The correct nursing intervention to include in the plan of care for a client with a T tube is to inspect the skin around the T tube daily for irritation. Bile is erosive and can cause skin irritation, so it is crucial to keep the skin clean and dry. T tubes are not routinely irrigated; irrigation is done only with a physician's order. It is unnecessary to maintain the client in a supine position; instead, assist the client into a position of comfort. T tubes are not typically clamped unless ordered by a physician, and if clamped, it is usually done 1 to 2 hours before and after meals.
5. 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.
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