ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare provider is caring for a group of clients who are not protected against Varicella. The healthcare provider should prepare to administer the Varicella vaccine at this time to which of the following clients?
- A. 24-year-old woman in the third trimester of pregnancy
- B. 12-year-old child who has a severe allergy to neomycin
- C. 2-month-old infant who has no health problems
- D. 32-year-old man who has essential hypertension
Correct answer: D
Rationale: The correct answer is the 32-year-old man who has essential hypertension. Individuals who did not receive two doses of the varicella vaccine earlier in life should be immunized. Essential hypertension is not a contraindication for this vaccine, making it safe to administer to this client. Choice A is incorrect because administering the Varicella vaccine is contraindicated during pregnancy due to the risk of transmission to the fetus. Choice B is incorrect because a severe allergy to neomycin is a contraindication to the Varicella vaccine, which contains a trace amount of neomycin. Choice C is incorrect because the Varicella vaccine is not recommended for infants under 12 months of age.
2. A healthcare provider is providing discharge instructions to a client who is prescribed Warfarin. Which of the following dietary instructions should the provider include?
- A. Increase your intake of leafy green vegetables.
- B. Avoid foods high in vitamin K.
- C. Increase your intake of dairy products.
- D. Avoid foods high in iron.
Correct answer: B
Rationale: The correct answer is to avoid foods high in vitamin K. Vitamin K can interfere with the effectiveness of Warfarin by counteracting its anticoagulant effects. Foods high in vitamin K, such as leafy green vegetables, should be limited in the diet of individuals taking Warfarin to maintain a consistent level of the medication's effectiveness. Choices A, C, and D are incorrect as increasing intake of leafy green vegetables (choice A) and dairy products (choice C) may increase the intake of vitamin K, which is not recommended, and avoiding foods high in iron (choice D) is not directly related to Warfarin therapy.
3. A client has a new prescription for Clozapine. Which of the following statements should the nurse include in the teaching?
- A. You should have a high-carbohydrate snack between meals and at bedtime.
- B. You are likely to develop hand tremors if you take this medication for a long period of time.
- C. You may experience temporary numbness of your mouth after each dose.
- D. You should have your white blood cell count monitored every week.
Correct answer: D
Rationale: Clozapine carries a risk for fatal agranulocytosis. To monitor for this serious adverse effect, it is crucial to check the client's white blood cell count weekly while they are on clozapine therapy.
4. When caring for a client prescribed warfarin, which laboratory test should the nurse monitor to evaluate the therapeutic effect of the medication?
- A. aPTT
- B. Platelet count
- C. BUN
- D. PT/INR
Correct answer: D
Rationale: The correct laboratory test to monitor the therapeutic effect of warfarin is the PT/INR. Warfarin affects blood clotting, and the PT/INR levels indicate the effectiveness of the medication in preventing clot formation. Therefore, monitoring PT/INR levels helps ensure that the client is within the therapeutic range and is protected from potential complications related to clotting. Choice A (aPTT) is incorrect because while it measures the clotting time, it is not the preferred test for monitoring warfarin therapy. Choice B (Platelet count) is incorrect as it assesses the number of platelets and not the medication's therapeutic effect. Choice C (BUN) is unrelated to monitoring the effects of warfarin therapy and is primarily used to assess kidney function.
5. A healthcare professional is caring for an older adult client who has a new prescription for Digoxin and takes multiple other medications. Which of the following medications, when used concurrently with Digoxin, places the client at risk for Digoxin toxicity?
- A. Phenytoin
- B. Verapamil
- C. Warfarin
- D. Aluminum hydroxide
Correct answer: B
Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to Digoxin toxicity. When these medications are used together, the client is at an increased risk. Phenytoin (Choice A) does not significantly impact digoxin levels. Warfarin (Choice C) and aluminum hydroxide (Choice D) do not directly increase the risk of Digoxin toxicity. Therefore, the correct choice is Verapamil (Choice B) due to its potential to raise digoxin levels and cause toxicity.
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