ATI LPN
LPN Pharmacology
1. A client's serum calcium level is 7.9 mg/dL. The nurse is immediately concerned, knowing that this level could lead to which complication?
- A. Stroke
- B. Cardiac arrest
- C. High blood pressure
- D. Urinary stone formation
Correct answer: B
Rationale: A serum calcium level below normal (hypocalcemia) can lead to cardiac arrhythmias and potentially cardiac arrest. Calcium plays a crucial role in cardiac muscle contractility, and low levels can disrupt normal heart function, potentially leading to fatal arrhythmias and cardiac arrest. Choices A, C, and D are incorrect as hypocalcemia is not directly associated with stroke, high blood pressure, or urinary stone formation. The immediate concern with low serum calcium levels is the risk of cardiac complications.
2. A client with a history of coronary artery disease (CAD) is prescribed atorvastatin (Lipitor). The nurse should teach the client about which common side effect of this medication?
- A. Dry mouth
- B. Muscle pain
- C. Drowsiness
- D. Diarrhea
Correct answer: B
Rationale: Muscle pain is a common side effect of statins like atorvastatin. It is important for the nurse to educate the client about this potential side effect, as it can indicate a serious condition called rhabdomyolysis, which requires immediate medical attention. Dry mouth, drowsiness, and diarrhea are not typically associated with atorvastatin use.
3. The healthcare provider is teaching a client with hypertension about lifestyle modifications. Which recommendation should the healthcare provider include?
- A. Limit alcohol consumption to one drink per day.
- B. Increase sodium intake to maintain blood pressure.
- C. Exercise vigorously for at least 30 minutes daily.
- D. Avoid high potassium foods like bananas.
Correct answer: A
Rationale: Limiting alcohol intake is an essential lifestyle modification recommended for managing hypertension. Excessive alcohol consumption can raise blood pressure, so limiting it to one drink per day is beneficial in controlling hypertension. Alcohol moderation is a key part of a heart-healthy lifestyle for individuals with high blood pressure. Choice B is incorrect because increasing sodium intake can actually worsen hypertension by retaining water and increasing blood pressure. Choice C is incorrect because while exercise is important for overall health, moderate-intensity exercise is recommended for individuals with hypertension to avoid excessive strain on the heart. Choice D is incorrect because high potassium foods like bananas are actually beneficial for individuals with hypertension as they can help lower blood pressure.
4. A nurse is assessing a client who has been taking lithium carbonate. Which of the following findings should the nurse report to the provider?
- A. Increased urination
- B. Tremors
- C. Weight gain
- D. Blurred vision
Correct answer: B
Rationale: The correct answer is B: Tremors. Tremors are a sign of lithium toxicity and should be reported immediately. Increased urination is a common side effect of lithium but not an urgent concern requiring immediate reporting. Weight gain is also a common side effect of lithium but does not indicate toxicity. Blurred vision is not typically associated with lithium toxicity; therefore, it is not the priority finding to report.
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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