HESI LPN
HESI Test Bank Medical Surgical Nursing
1. A client with peptic ulcer disease is prescribed sucralfate. What is the mechanism of action of this medication?
- A. Neutralizes stomach acid
- B. Decreases gastric acid secretion
- C. Covers the ulcer site and protects it from acid
- D. Improves gastric motility
Correct answer: C
Rationale: The correct answer is C: Covers the ulcer site and protects it from acid. Sucralfate works by forming a protective barrier over ulcers, shielding them from stomach acid and promoting healing. Choice A, neutralizing stomach acid, is incorrect as sucralfate does not neutralize acid but acts as a physical barrier. Choice B, decreasing gastric acid secretion, is not the mechanism of action of sucralfate. Choice D, improving gastric motility, is unrelated to sucralfate's action on peptic ulcers.
2. Following a bout of diarrhea, which foods should be offered to the school-age child?
- A. Apricots and peaches
- B. Chocolate milk
- C. Applesauce and milk
- D. Bananas and rice
Correct answer: D
Rationale: After rehydration, it is important to offer foods that are nonirritating to the bowel to the child. Bananas and rice are considered the best options as they are least likely to irritate the gastrointestinal tract. Apricots, peaches, and applesauce are fruits that may cause GI irritation, while milk, including chocolate milk, can also be irritating to the bowel. Therefore, the optimal choice for a child recovering from diarrhea would be bananas and rice.
3. When interacting with the parents of a SIDS infant, the nurse should attempt to assist the parents with:
- A. Encouraging the parents to have another baby.
- B. Encouraging the parents to remain stoic.
- C. Allaying feelings of guilt and blame.
- D. Learning how the event could have been prevented.
Correct answer: C
Rationale: The correct answer is C: Allaying feelings of guilt and blame. When parents experience the loss of a SIDS infant, they often struggle with intense feelings of guilt and self-blame. The nurse's role is to provide emotional support and help alleviate these feelings. Choices A and B are incorrect as encouraging the parents to have another baby or to remain stoic is not appropriate or helpful in this situation. Choice D is also incorrect because focusing on how the event could have been prevented may exacerbate feelings of guilt and is not the immediate priority in supporting grieving parents.
4. When is the best time to administer pancreatic enzyme replacement?
- A. Before meals and snacks
- B. Before bedtime
- C. Early in the morning
- D. After meals and snacks
Correct answer: A
Rationale: The correct answer is to administer pancreatic enzyme replacement before meals and snacks. This timing is crucial as it allows the enzymes to assist in the digestion of carbohydrates, fats, and proteins that are consumed during the meals. Administering the replacement after meals and snacks would not be effective as the enzymes need to be present in the digestive system when food is consumed. Options B and C are incorrect as they do not align with the optimal timing for pancreatic enzyme replacement administration.
5. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
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