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. The home care nurse is visiting a client with a diagnosis of pernicious anemia that developed as a result of gastric surgery. The nurse instructs the client that because the stomach lining produces a decreased amount of intrinsic factor in this disorder, the client will need
- A. Vitamin B12 injections
- B. Vitamin B6 injections
- C. An antibiotic
- D. An antacid
Correct answer: A
Rationale: A lack of intrinsic factor needed to absorb vitamin B12 occurs in pernicious anemia. Vitamin B12 is needed for the maturation of red blood cells. Vitamin B6 is not necessarily needed for pernicious anemia and can be taken orally. An antibiotic and antacids may be prescribed for certain types of gastric ulcers.
3. The client with chronic pancreatitis needs information on dietary modification to manage the health problem. The nurse teaches the client to limit which of the following items in the diet?
- A. Carbohydrate
- B. Protein
- C. Fat
- D. Water-soluble vitamins
Correct answer: C
Rationale: The client should limit fat in the diet. The client also should take in small meals, which also will reduce the amount of carbohydrates and protein that the client must digest at any one time. The client does not need to limit water-soluble vitamins in the diet.
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 with liver dysfunction is having difficulty with protein metabolism. The nurse anticipates that the results of which of the following serum laboratory studies will be elevated?
- A. Lactic acid
- B. Ammonia
- C. Albumin
- D. Lactase
Correct answer: B
Rationale: During deamination of proteins, the liver splits the amino group from the carbon-containing compound, which results in the formation of ammonia and a carbon residue. The liver then converts the toxic ammonia substance into urea, which can be excreted by the kidneys. Clients with liver dysfunction may have high serum ammonia levels as a result.
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