ATI LPN
LPN Pharmacology Questions
1. A healthcare professional is assessing a client who has a new prescription for levothyroxine. Which of the following findings should the healthcare professional report to the provider?
- A. Weight gain
- B. Increased heart rate
- C. Heat intolerance
- D. Elevated blood pressure
Correct answer: C
Rationale: The correct answer is C: Heat intolerance. Heat intolerance is a concerning sign of levothyroxine toxicity and should be reported to the provider promptly. Levothyroxine is a medication used to treat hypothyroidism by supplementing the body's thyroid hormones. When a client experiences heat intolerance, it can indicate that the dose of levothyroxine is too high, leading to hyperthyroidism symptoms. Weight gain, increased heart rate, and elevated blood pressure are not typically associated with levothyroxine toxicity; instead, they are more commonly seen in conditions like hypothyroidism.
2. The client is receiving anticoagulant therapy for atrial fibrillation. Which laboratory test should be monitored to determine the effectiveness of the therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: A
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are essential laboratory tests to monitor the effectiveness of anticoagulant therapy in clients with atrial fibrillation. These tests help ensure that the client is within the therapeutic range and are commonly used to assess the clotting ability of the blood. Monitoring PT and INR levels allows healthcare providers to adjust anticoagulant dosages as needed to prevent complications such as bleeding or thrombosis. Activated partial thromboplastin time (aPTT) is more commonly used to monitor heparin therapy, not anticoagulant therapy for atrial fibrillation. Platelet count assesses the number of platelets in the blood and is not a direct indicator of anticoagulant therapy effectiveness. Erythrocyte sedimentation rate (ESR) is a nonspecific marker of inflammation and is not used to monitor anticoagulant therapy.
3. A healthcare professional is assessing a client who is taking digoxin. Which of the following findings should the healthcare professional report to the provider?
- A. Weight gain
- B. Dry cough
- C. Hypokalemia
- D. Bradycardia
Correct answer: D
Rationale: Bradycardia is a significant finding in a client taking digoxin as it is a sign of digoxin toxicity. Bradycardia can indicate that the client is experiencing an adverse reaction to the medication, potentially leading to serious complications. Therefore, it is crucial for the healthcare professional to report bradycardia to the provider promptly for further evaluation and intervention. Weight gain, dry cough, and hypokalemia are not typically associated with digoxin toxicity and may have other underlying causes. While weight gain and cough can be monitored, bradycardia requires immediate attention due to its potential link to digoxin toxicity.
4. After a client with a history of myocardial infarction (MI) is prescribed aspirin, which instruction should the nurse include in the discharge teaching?
- A. Take the aspirin with food to prevent gastrointestinal upset
- B. Discontinue the aspirin if you experience ringing in your ears
- C. Take the aspirin at bedtime to minimize side effects
- D. Avoid taking aspirin if you are also taking other NSAIDs
Correct answer: A
Rationale: The correct instruction is to take aspirin with food to prevent gastrointestinal upset. Aspirin can irritate the stomach lining, leading to potential gastrointestinal issues. Taking it with food helps reduce this risk by providing a protective layer in the stomach. This is a common recommendation to minimize the risk of gastrointestinal side effects when taking aspirin. Choices B, C, and D are incorrect. Choice B is not a typical reason to discontinue aspirin, as ringing in the ears is not a common side effect of aspirin. Choice C does not have a direct correlation to minimizing side effects of aspirin. Choice D is inaccurate because while caution should be exercised when taking aspirin with other NSAIDs due to the increased risk of bleeding, it does not mean aspirin should be entirely avoided if other NSAIDs are being taken.
5. A client with a history of deep vein thrombosis (DVT) is prescribed warfarin (Coumadin). The nurse should include which instruction in the discharge teaching?
- A. Take the medication at the same time each day
- B. Avoid green leafy vegetables in your diet
- C. Increase your intake of vitamin K-rich foods
- D. Stop the medication if you notice any bruising
Correct answer: A
Rationale: Taking warfarin at the same time each day is crucial to maintain consistent blood levels and ensure the effectiveness of the medication in preventing clot formation. Consistent timing helps in monitoring and adjusting the dosage as needed to keep the international normalized ratio (INR) within the therapeutic range to prevent clotting events or excessive bleeding. Choices B, C, and D are incorrect. Avoiding green leafy vegetables is a misconception; while they are high in vitamin K which antagonizes warfarin, they should not be avoided but consumed in moderation. Increasing vitamin K-rich foods can interfere with warfarin's effectiveness. Stopping the medication due to bruising can be dangerous as it may indicate a clotting problem that the medication is intended to prevent.
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