Pharmacology for LPN

Correct Answer: B

Rationale: In the context of an acute myocardial infarction (MI), morphine is administered to relieve pain and reduce myocardial oxygen demand. By alleviating pain and anxiety, morphine helps reduce oxygen demand on the heart, which is beneficial in the setting of an MI. Aspirin, commonly used for its antiplatelet effects, helps inhibit platelet aggregation and is crucial in the management of MI to prevent further clot formation. Atropine is a medication used to treat symptomatic bradycardia by increasing heart rate, not commonly indicated in the management of acute MI. Lidocaine is used for ventricular dysrhythmias and is not typically given to reduce myocardial oxygen demand in an acute MI scenario.

Correct Answer: C

Rationale: Choice C is the correct answer because bacon and sausage are high in sodium, which contradicts the low-sodium diet requirement. Consuming them freely would contribute to increased sodium intake, which is not suitable for managing hypertension. Choices A, B, and D demonstrate appropriate understanding and actions for a low-sodium diet, such as using alternatives to salt, avoiding processed foods, and checking food labels for sodium content.

Correct Answer: A

Rationale: Clients prescribed with warfarin (Coumadin) need to maintain a consistent intake of vitamin K and avoid sudden increases in foods rich in vitamin K as it can interfere with the effectiveness of the medication. Choice A, 'I will avoid eating foods high in vitamin K, like spinach and broccoli,' is the correct statement indicating an understanding of the medication. This choice demonstrates knowledge of the importance of consistent vitamin K intake to prevent fluctuations in warfarin's effectiveness. Choices B, C, and D are incorrect. Choice B suggests a substitution that is not advised without consulting a healthcare provider. Choice C is incorrect as stopping warfarin suddenly can lead to serious health risks. Choice D is unsafe and incorrect since doubling the dose is not the correct action if a dose is missed.

Correct Answer: B

Rationale: The correct answer is to instruct the client to report a persistent dry cough. ACE inhibitors can cause a common side effect of a persistent dry cough, which should be promptly reported to the healthcare provider for further evaluation and possible medication adjustment. Option A is incorrect because the timing of ACE inhibitor administration is usually not specified to be at bedtime. Option C is incorrect as increasing potassium-rich foods can lead to hyperkalemia when taking ACE inhibitors. Option D is incorrect because ACE inhibitors can be taken with or without food.

Correct Answer: B

Rationale: Activated partial thromboplastin time (aPTT) is the laboratory test monitored to evaluate the effectiveness of anticoagulant therapy, particularly with heparin. It measures the time it takes for blood to clot, and monitoring aPTT helps ensure the therapeutic range is maintained to prevent clot formation and excessive bleeding. Choices A, C, and D are incorrect because a complete blood count (CBC) assesses overall health, serum electrolytes evaluate the body's electrolyte balance, and liver function tests assess liver health, none of which directly evaluate the effectiveness of anticoagulant therapy for DVT.