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. 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.
3. What should be included in the medical management of sickle cell crisis?
- A. Information for the parents including home care
- B. Provisions for adequate hydration and pain management
- C. Pain management and administration of iron supplements
- D. Adequate oxygenation and factor VIII
Correct answer: B
Rationale: The correct answer is B: Provisions for adequate hydration and pain management. In managing a sickle cell crisis, it is essential to provide adequate hydration to prevent further sickling of red blood cells and ensure proper pain management to alleviate the severe pain associated with the crisis. While information for parents and home care may be important aspects of overall care, they are not specific to the immediate medical management of a sickle cell crisis. Administration of iron supplements is not recommended during a sickle cell crisis as it can potentially worsen the condition by promoting the production of more sickled red blood cells. Adequate oxygenation is crucial in sickle cell disease, but factor VIII is not typically part of the management of a sickle cell crisis.
4. The healthcare provider writes several prescriptions for a client diagnosed with hospital-acquired pneumonia (HAP) that include a combination of broad-spectrum antibiotics. Which intervention should the nurse implement first?
- A. Administer the first dose of antibiotics.
- B. Obtain a chest X-ray.
- C. Administer oxygen therapy.
- D. Collect blood specimens for culture prior to starting antibiotic therapy.
Correct answer: D
Rationale: Collecting blood specimens for culture prior to starting antibiotic therapy is the priority intervention in a client diagnosed with hospital-acquired pneumonia. This step is crucial to identify the causative organism responsible for the infection and ensure that the antibiotics prescribed are appropriate for effective treatment. Administering antibiotics before collecting cultures may interfere with the accuracy of culture results, potentially leading to inappropriate treatment. While administering the first dose of antibiotics is important, obtaining a chest X-ray and administering oxygen therapy are secondary interventions compared to identifying the causative organism through blood cultures.
5. An older female client has normal saline infusing at 45 ml/hour. She complains of pain at the insertion of the IV catheter. There is no redness or edema around the IV site. Which action should the nurse take?
- A. Determine what IV medications have recently been administered.
- B. Slow the infusion rate.
- C. Apply a warm compress to the IV site.
- D. Discontinue the IV line and start a new one.
Correct answer: A
Rationale: The correct action for the nurse to take in this scenario is to determine what IV medications have recently been administered. This is important to identify if the pain at the IV site is related to a medication infusion. Slowing the infusion rate (choice B) may not address the underlying cause of the pain. Applying a warm compress (choice C) is not necessary since there is no redness or edema around the IV site. Discontinuing the IV line and starting a new one (choice D) is a drastic step and should not be the first action taken without investigating the cause of the pain.
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