HESI LPN
Pharmacology HESI 55 Questions 2023
1. The patient is prescribed cimetidine (Tagamet) orally. What should the nurse consider about administering this drug?
- A. Administer the drug with the first bite of food
- B. Administer the drug immediately after meals
- C. Administer the drug 30 minutes after meals
- D. Administer the drug 30 minutes before meals
Correct answer: D
Rationale: Cimetidine is best absorbed when taken 30 minutes before meals to decrease stomach acid. Administering it before meals allows for optimal absorption and effectiveness of the medication. Choices A, B, and C are incorrect because administering cimetidine with food, immediately after meals, or 30 minutes after meals may not provide the best conditions for absorption. Taking it before meals ensures that the drug is absorbed properly and can exert its intended effects.
2. A client with chronic kidney disease is prescribed cinacalcet. The nurse should monitor for which potential side effect?
- A. Hypocalcemia
- B. Hypercalcemia
- C. Hyperkalemia
- D. Hyperphosphatemia
Correct answer: A
Rationale: Corrected Rationale: Cinacalcet is a medication that can lower calcium levels, leading to hypocalcemia. Monitoring for signs of low calcium levels such as muscle cramps, tingling sensations, and abnormal heart rhythms is crucial to prevent complications in clients with chronic kidney disease.\nIncorrect Choices Rationale: B) Hypercalcemia is the opposite effect of cinacalcet; C) Hyperkalemia and D) Hyperphosphatemia are not typically associated with cinacalcet use.
3. An older adult with iron deficiency anemia is being discharged with iron supplements, which information should the nurse include in the discharge?
- A. Take the tablet with a daily multivitamin
- B. Crush the tablet and mix it with pudding
- C. Bedtime is the best time to take the tablet
- D. Wait 2 hours after meals to take the tablet
Correct answer: D
Rationale: The correct answer is to wait 2 hours after meals before taking the iron tablet. This is important to ensure better absorption and efficacy of the iron supplement. Taking the tablet with a daily multivitamin (Choice A) may interfere with iron absorption due to interactions with other minerals. Crushing the tablet and mixing it with pudding (Choice B) can alter the effectiveness of the medication. While bedtime (Choice C) may be convenient, waiting after meals is crucial for optimal iron absorption.
4. A client is prescribed an antacid for the treatment of peptic ulcer disease. What is the action of this medication that is effective in treating the client's ulcer?
- A. Decrease in the production of gastric secretions
- B. Production of an adherent barrier over the ulcer
- C. Maintenance of a gastric pH of 3.5 or above
- D. Decrease in the gastric motor activity
Correct answer: C
Rationale: The correct answer is C. Antacids work by neutralizing gastric acids and maintaining a gastric pH of 3.5 or above. This pH level is crucial to prevent the activation of pepsinogen, a precursor to pepsin, which can further damage the ulcer. Choice A is incorrect because antacids do not directly decrease the production of gastric secretions; they neutralize existing acid. Choice B is incorrect as antacids do not form a physical barrier over the ulcer but rather neutralize the acid around it. Choice D is also incorrect as antacids do not affect gastric motor activity but focus on reducing acidity in the stomach.
5. A client with chronic kidney disease is prescribed lanthanum carbonate. The nurse should monitor for which potential side effect?
- A. Hypercalcemia
- B. Hypocalcemia
- C. Hyperkalemia
- D. Hypokalemia
Correct answer: A
Rationale: Lanthanum carbonate is prescribed in chronic kidney disease to bind dietary phosphorus in the gastrointestinal tract. This action can lead to decreased phosphorus absorption and potential hypercalcemia due to the increased serum calcium levels. Therefore, the nurse should monitor the client for signs and symptoms of hypercalcemia, such as confusion, fatigue, and muscle weakness. Choices B, C, and D are incorrect as lanthanum carbonate's mechanism of action does not lead to hypocalcemia, hyperkalemia, or hypokalemia.
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