HESI LPN
Pharmacology HESI Practice
1. How does omeprazole work in treating a peptic ulcer?
- A. Increasing the production of gastric acid
- B. Neutralizing stomach acid
- C. Coating the stomach lining
- D. Reducing gastric acid secretion
Correct answer: D
Rationale: Omeprazole is a proton pump inhibitor that works by reducing gastric acid secretion. By inhibiting the enzyme responsible for pumping acid into the stomach, omeprazole helps decrease the acidity level in the stomach, providing relief from peptic ulcers. Option A is incorrect because omeprazole does not increase gastric acid production; instead, it decreases it. Option B is incorrect as omeprazole does not neutralize existing stomach acid but rather reduces its secretion. Option C is incorrect as omeprazole does not coat the stomach lining but acts on reducing acid secretion.
2. A client with diabetes mellitus type 2 is prescribed dapagliflozin. The nurse should monitor for which potential adverse effect?
- A. Genital infections
- B. Hypoglycemia
- C. Hyperglycemia
- D. Nausea
Correct answer: A
Rationale: The correct answer is A: Genital infections. Dapagliflozin, a medication used in diabetes mellitus type 2, is associated with an increased risk of genital infections. Its mechanism of action involves promoting glucose excretion through the urine, creating a favorable environment for microbial growth in the genital area. Monitoring for genital infections is crucial when a client is prescribed dapagliflozin. Hypoglycemia (choice B) is not a common adverse effect of dapagliflozin since it does not directly lower blood glucose levels. Hyperglycemia (choice C) is also unlikely as dapagliflozin is intended to help lower blood glucose levels. Nausea (choice D) is a less common side effect of dapagliflozin compared to genital infections.
3. A client with a diagnosis of bipolar disorder is prescribed carbamazepine. The nurse should monitor for which potential adverse effect?
- A. Agranulocytosis
- B. Hair loss
- C. Liver toxicity
- D. Weight gain
Correct answer: A
Rationale: Carbamazepine is associated with the potential adverse effect of agranulocytosis, a serious condition characterized by a low white blood cell count. Monitoring white blood cell counts regularly is crucial to detect this adverse effect early and prevent complications.
4. A client with a diagnosis of schizophrenia is prescribed olanzapine. The nurse should monitor for which potential side effect?
- A. Weight gain
- B. Insomnia
- C. Dry mouth
- D. Headache
Correct answer: A
Rationale: When a client with schizophrenia is prescribed olanzapine, the nurse should monitor for weight gain as a potential side effect. Olanzapine is known to cause metabolic changes that can lead to weight gain, making it crucial for the nurse to closely monitor the client's weight during treatment. This side effect is significant as it can impact the client's overall health and well-being, so early detection and intervention are essential to manage it effectively.
5. A client undergoing hemodialysis for chronic kidney disease is taking the medication erythropoietin. The nurse should reinforce instructions to explain for which reason this medication is prescribed?
- A. This drug prevents infections associated with dialysis.
- B. This drug prevents deep vein thrombosis in older clients.
- C. This drug helps stimulate the production of red blood cells.
- D. This drug helps balance the level of phosphorus in the body.
Correct answer: C
Rationale: Erythropoietin is prescribed to stimulate the production of red blood cells. Clients undergoing hemodialysis often develop anemia due to end-stage renal disease. Erythropoietin helps correct this anemia by stimulating red blood cell production. It is not used to prevent infections associated with dialysis, prevent deep vein thrombosis, or balance phosphorus levels in the body.
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