ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for metformin. Which of the following statements should the nurse include in the teaching?
- A. Take the medication with a full glass of water.
- B. Monitor for signs of hypoglycemia.
- C. Increase your fluid intake.
- D. Expect a metallic taste in your mouth.
Correct answer: C
Rationale: Increasing fluid intake is an important teaching point for clients starting metformin to prevent gastrointestinal discomfort, a common side effect of this medication. Metformin can cause gastrointestinal symptoms such as nausea, bloating, and diarrhea, which can be reduced by staying well-hydrated. Therefore, advising the client to increase their fluid intake will help minimize these side effects and improve medication tolerance. The other options are incorrect: Option A is a general instruction for taking medications but not specifically related to metformin. Option B is incorrect because metformin typically does not cause hypoglycemia but rather hyperglycemia. Option D is also incorrect as a metallic taste in the mouth is not a common side effect of metformin.
2. A healthcare provider is providing discharge teaching to a client who has a new prescription for furosemide. Which of the following statements should the provider include?
- A. Expect muscle pain.
- B. Monitor your weight daily.
- C. Avoid consuming grapefruit juice.
- D. Increase your intake of potassium-rich foods.
Correct answer: D
Rationale: When a client is prescribed furosemide, an important consideration is preventing hypokalemia, a potential side effect of the medication. Furosemide can lead to potassium depletion, so increasing the intake of potassium-rich foods is crucial to maintain adequate potassium levels in the body. Choices A, B, and C are incorrect because muscle pain is not a common side effect of furosemide, monitoring weight daily may not be directly related to the medication, and avoiding grapefruit juice is more relevant for certain medications that interact with grapefruit juice, not furosemide.
3. The client with a history of heart failure is receiving digoxin (Lanoxin). Which electrolyte imbalance increases the risk of digoxin toxicity?
- A. Hypernatremia
- B. Hypercalcemia
- C. Hypokalemia
- D. Hypomagnesemia
Correct answer: C
Rationale: Hypokalemia increases the risk of digoxin toxicity as low potassium levels enhance the effects of digoxin on the heart, leading to toxicity and potential adverse effects. Hypernatremia (Choice A) is not directly associated with an increased risk of digoxin toxicity. Hypercalcemia (Choice B) does not increase the risk of digoxin toxicity. Hypomagnesemia (Choice D) can contribute to digoxin toxicity, but hypokalemia has a more significant impact on increasing the risk.
4. A client diagnosed with coronary artery disease (CAD) reports chest pain radiating to the left arm. The nurse checks the client's blood pressure and administers nitroglycerin 0.4 mg sublingually. Five minutes later, the client is still experiencing chest pain. What is the next appropriate nursing action?
- A. Administer another dose of nitroglycerin.
- B. Notify the healthcare provider immediately.
- C. Have the client lie down and stay calm.
- D. Give the client aspirin 325 mg to chew.
Correct answer: A
Rationale: If chest pain persists after the first dose of nitroglycerin, it is appropriate to administer a second dose while continuing to monitor the client's response. Nitroglycerin helps dilate blood vessels and improve blood flow to the heart, relieving chest pain associated with coronary artery disease. Reassessing the client's response to a second dose is crucial before considering other interventions like contacting the healthcare provider or providing additional medications. Administering another dose of nitroglycerin aligns with the standard protocol for managing ongoing chest pain in clients with CAD.
5. A client with a history of angina is scheduled for an exercise electrocardiography (ECG) test. The nurse should explain that the purpose of this test is to evaluate which factor?
- A. The heart's response to physical stress
- B. The client's overall physical fitness
- C. The presence of electrolyte imbalances
- D. The effectiveness of anti-anginal medications
Correct answer: A
Rationale: An exercise electrocardiography (ECG) test is used to evaluate the heart's response to physical stress. During the test, the heart's electrical activity is monitored while the client exercises, helping to identify any areas of ischemia or abnormal rhythms. This test helps healthcare providers assess the heart's function and detect any potential issues related to angina or other cardiac conditions. Choice B, the client's overall physical fitness, is incorrect because the test primarily focuses on the heart's response to stress rather than the client's general physical fitness. Choice C, the presence of electrolyte imbalances, is incorrect as this test is not specifically designed to evaluate electrolyte levels. Choice D, the effectiveness of anti-anginal medications, is incorrect as the main purpose of the test is to assess the heart's response to physical stress, not medication effectiveness.
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