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. Which statement indicates that a client with coronary artery disease (CAD) understands disease management?
- A. I will walk for one-half hour daily.
- B. As long as I exercise, I can eat anything I wish.
- C. My weight plays no role in this disease.
- D. My father's high cholesterol is irrelevant.
Correct answer: A
Rationale: Choice A is the correct answer because regular physical activity, such as walking for half an hour daily, is beneficial for managing coronary artery disease (CAD) and promoting heart health. Walking helps improve circulation, reduce cholesterol levels, and maintain a healthy weight, all of which are crucial for managing CAD. Choice B is incorrect because diet also plays a significant role in CAD management, not just exercise. Choice C is incorrect because weight management is essential in controlling CAD risk factors. Choice D is incorrect because family history of high cholesterol can increase the risk of CAD, making it relevant for disease management.
3. A client with chronic obstructive pulmonary disease (COPD) is prescribed theophylline. The nurse should monitor the client for which sign of theophylline toxicity?
- A. Drowsiness
- B. Bradycardia
- C. Nausea
- D. Constipation
Correct answer: C
Rationale: Nausea is an early sign of theophylline toxicity. The nurse should closely monitor the client for this symptom as it can progress to more severe toxicity. Nausea can be a warning sign to prevent further complications and adjust the dosage as necessary. Drowsiness (choice A) is a common side effect of theophylline but not a specific sign of toxicity. Bradycardia (choice B) and constipation (choice D) are not typically associated with theophylline toxicity. Therefore, the correct answer is C.
4. A client with heart failure is being discharged with a prescription for digoxin (Lanoxin). The nurse should include which instruction in the discharge teaching?
- A. Take your pulse before each dose and hold the medication if your pulse is below 60 beats per minute
- B. Increase your fluid intake to at least 3 liters per day
- C. Report any weight loss of more than 2 pounds in a week
- D. Take the medication with meals to avoid gastrointestinal upset
Correct answer: A
Rationale: The correct instruction for a client taking digoxin is to monitor the pulse before each dose and hold the medication if the pulse is below 60 beats per minute. Digoxin can cause bradycardia, so it is crucial to assess the pulse rate before administration to prevent potential complications. Choices B, C, and D are incorrect because increasing fluid intake, reporting weight loss, or taking the medication with meals are not specific instructions related to the safe use of digoxin.
5. A healthcare professional is assessing a client who has been taking lithium carbonate for bipolar disorder. Which of the following findings should the professional report to the provider?
- A. Increased urination
- B. Tremors
- C. Weight gain
- D. Blurred vision
Correct answer: B
Rationale: Tremors are a concerning sign of lithium toxicity that indicate a potential overdose. Tremors can progress to more severe symptoms if not addressed promptly. Reporting tremors promptly allows the provider to assess the client's lithium levels, adjust the dosage, or provide appropriate interventions to prevent further complications. Increased urination, weight gain, and blurred vision are potential side effects of lithium but are not indicative of toxicity or overdose. While they should still be monitored, they are not as urgent as tremors in the context of lithium therapy.
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