ATI RN
ATI Pharmacology Proctored Exam 2019
1. An older adult client has a new prescription for Digoxin and takes multiple other medications. The nurse should recognize that concurrent use of which of the following medications 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 toxicity. When given together, the digoxin dosage may need adjustment, and the nurse should closely monitor the client's digoxin levels to prevent toxicity symptoms such as nausea, vomiting, visual disturbances, and arrhythmias. The other choices, Phenytoin, Warfarin, and Aluminum hydroxide, do not significantly interact with Digoxin to cause toxicity. Phenytoin may reduce Digoxin levels, while Warfarin and Aluminum hydroxide have minimal interactions with Digoxin.
2. A client has a new prescription for transdermal patches. Which statement should the client make to indicate understanding of the instructions?
- A. I will clean the site with an alcohol swab before applying the patch.
- B. I will rotate the application sites weekly.
- C. I will apply the patch to an area of skin with no hair.
- D. I will place the new patch on the site of the old patch.
Correct answer: C
Rationale: The correct answer is C. Applying the patch to a hairless area of skin is essential for optimal medication absorption. Hair can interfere with the patch's adherence and effectiveness. It is important for the client to choose a site without hair to ensure proper delivery of the medication. Choices A, B, and D are incorrect because cleaning the site with an alcohol swab (Choice A) is a good practice but not the most crucial aspect for transdermal patch application. Rotating application sites weekly (Choice B) is more relevant for injections to prevent skin irritation or breakdown. Placing the new patch on the site of the old patch (Choice D) can lead to skin irritation and poor absorption due to a build-up of medication.
3. A client has a new prescription for Propranolol. Which of the following findings should be identified as a contraindication to this medication?
- A. Asthma
- B. Diabetes mellitus
- C. Hypertension
- D. Glaucoma
Correct answer: A
Rationale: Corrected Rationale: Propranolol is a non-selective beta-blocker that can cause bronchoconstriction, making it contraindicated for clients with asthma. Asthma is a contraindication due to the potential for worsening bronchoconstriction and exacerbating respiratory symptoms. Choice B, diabetes mellitus, is not a contraindication for Propranolol. Choice C, hypertension, is actually an indication for Propranolol as it is commonly used to treat hypertension. Choice D, glaucoma, is not a contraindication for Propranolol use.
4. A client has a new prescription for Verapamil to control hypertension. Which of the following instructions should the nurse include?
- A. Increase the amount of dietary fiber in the diet.
- B. Drink grapefruit juice daily to increase vitamin C intake.
- C. Decrease the amount of calcium in the diet.
- D. Withhold food for 1 hr after taking the medication.
Correct answer: A
Rationale: Increasing dietary fiber intake is essential when taking Verapamil to prevent constipation, a common adverse effect of this medication. Verapamil is a calcium channel blocker used to treat hypertension, and dietary fiber helps maintain bowel regularity and prevent constipation that may occur as a side effect of the medication.
5. How should a client prevent systemic absorption of Timolol eye drops according to the nurse's instructions?
- A. Bony orbit
- B. Nasolacrimal duct
- C. Conjunctival sac
- D. Outer canthus
Correct answer: B
Rationale: The correct technique to prevent systemic absorption of eye drops is to press on the nasolacrimal duct while instilling them. By doing so, the lacrimal punctum gets temporarily blocked, reducing drainage into the nasolacrimal duct and systemic circulation. This method helps enhance the localized effect of the medication and decreases the risk of systemic side effects. Choices A, C, and D are incorrect as they do not play a direct role in preventing systemic absorption of the eye drops.
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