ATI LPN
Pharmacology for LPN
1. A client with atrial fibrillation is receiving warfarin (Coumadin). The nurse should reinforce which instruction?
- A. Avoid foods high in vitamin K.
- B. Increase intake of dairy products.
- C. Limit intake of high-fiber foods.
- D. Avoid protein-rich foods.
Correct answer: A
Rationale: The correct answer is A: Avoid foods high in vitamin K. Clients taking warfarin need to be cautious with their vitamin K intake because vitamin K can counteract the effects of the medication. Therefore, it is essential to avoid foods high in vitamin K to maintain the therapeutic effects of warfarin. Choice B is incorrect because increasing dairy product intake is not specifically related to warfarin therapy. Choice C is incorrect as high-fiber foods do not interfere with warfarin therapy. Choice D is incorrect as protein-rich foods are not contraindicated with warfarin therapy.
2. A client with a history of myocardial infarction (MI) is being discharged with a prescription for nitroglycerin sublingual tablets. Which instruction should the nurse reinforce?
- A. Store the tablets in a cool, dry place away from light.
- B. Take a tablet every 5 minutes if chest pain occurs.
- C. Place the tablets under the tongue for sublingual absorption.
- D. Take the tablets without water for faster effect.
Correct answer: A
Rationale: The correct answer is A. Nitroglycerin tablets are light and moisture-sensitive, so they should be stored in a cool, dry place away from light to maintain their effectiveness. Option B advises taking a tablet every 5 minutes, which may lead to overdose as this frequency is too high. Option C emphasizes the correct administration route for sublingual tablets. Option D is incorrect as water is not needed for the tablets to take effect.
3. The client is scheduled to undergo a treadmill stress test. Which instruction should the client be reinforced with?
- A. Eat a light meal before the test.
- B. Wear comfortable shoes and clothing.
- C. Avoid all physical activity the morning of the test.
- D. Take prescribed medications right before the test.
Correct answer: B
Rationale: The correct answer is B: 'Wear comfortable shoes and clothing.' Wearing comfortable shoes and clothing is crucial for the client undergoing a treadmill stress test to ensure they can complete the test without discomfort. The right attire will help the client move freely and reduce the risk of any hindrance during the test, which requires physical activity. Choices A, C, and D are incorrect. A light meal before the test may be recommended, but it's not as crucial as wearing suitable attire. Avoiding physical activity the morning of the test is not necessary as the test requires physical activity. Taking prescribed medications right before the test instructions should be followed as per the healthcare provider's advice and not as a general rule for all clients undergoing the test.
4. A client diagnosed with hypertension is prescribed atenolol (Tenormin). The nurse should monitor the client for which common side effect of this medication?
- A. Tachycardia
- B. Dry mouth
- C. Hypotension
- D. Increased appetite
Correct answer: C
Rationale: Atenolol is a beta-blocker that works by lowering blood pressure. A common side effect of atenolol is hypotension, where blood pressure drops too low. Therefore, the nurse should monitor the client for signs and symptoms of hypotension to prevent any complications. Choices A, B, and D are incorrect because tachycardia (fast heart rate), dry mouth, and increased appetite are not common side effects of atenolol. Hypotension is the expected side effect due to the medication's mechanism of action.
5. The healthcare professional is caring for a client who has just returned from a cardiac catheterization. The healthcare professional should prioritize which assessment?
- A. Monitoring the client's vital signs every 4 hours
- B. Assessing the puncture site for bleeding
- C. Encouraging the client to ambulate early to prevent complications
- D. Providing the client with fluids to flush out the contrast dye
Correct answer: B
Rationale: Assessing the puncture site for bleeding is a critical assessment after a cardiac catheterization procedure. This is essential to detect and address any potential complications promptly, such as hemorrhage or hematoma formation. Monitoring vital signs, encouraging early ambulation, and providing fluids to flush out contrast dye are important aspects of post-cardiac catheterization care, but assessing the puncture site for bleeding takes precedence due to the immediate risk of complications such as severe bleeding that require immediate intervention.
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