ATI RN
ATI Pharmacology Quizlet
1. When teaching a client about preventing Otitis Externa, which of the following instructions should the nurse include?
- A. Clean the ear with a cotton-tipped swab daily.
- B. Place earplugs in the ears when sleeping at night.
- C. Use a cool water irrigation solution to remove earwax.
- D. Tip the head to the side to remove water from the ears after showering.
Correct answer: D
Rationale: To prevent Otitis Externa, the nurse should instruct the client to tip the head to the side to allow water to drain out after showering or swimming. This helps to prevent moisture buildup in the ear canal, reducing the risk of developing Otitis Externa, commonly known as swimmer's ear.
2. A client has a new prescription for Clopidogrel. Which of the following instructions should the nurse include?
- A. Take this medication with food.
- B. Avoid taking aspirin while on this medication.
- C. Avoid eating foods high in potassium.
- D. Take this medication at bedtime.
Correct answer: B
Rationale: When a client is prescribed Clopidogrel, an antiplatelet medication, the nurse should instruct them to avoid taking aspirin or other NSAIDs. This is because both medications can increase the risk of bleeding when taken together, potentially leading to serious health complications. Therefore, it is crucial for the client to follow this instruction to ensure their safety and well-being while on Clopidogrel. Choices A, C, and D are incorrect because taking Clopidogrel with food, avoiding foods high in potassium, or taking the medication at bedtime are not specific instructions related to the safe use of Clopidogrel and do not address the potential interaction with aspirin, which is essential for the client's well-being.
3. A client has been taking Phenylephrine nasal drops for the past 10 days for Sinusitis. The nurse should assess the client for which of the following adverse effects of this medication?
- A. Sedation
- B. Nasal congestion
- C. Productive cough
- D. Constipation
Correct answer: B
Rationale: The correct answer is B: Nasal congestion. After more than 5 days of use, nasal sympathomimetic medications like phenylephrine can lead to rebound nasal congestion. This occurs due to prolonged vasoconstriction of nasal blood vessels, causing worsening nasal congestion. Sedation (choice A) is not a common adverse effect of phenylephrine nasal drops. Productive cough (choice C) and constipation (choice D) are also not typical adverse effects associated with this medication.
4. What is the primary action of warfarin as an anticoagulant?
- A. Prevents the formation of blood clots
- B. Dissolves existing blood clots
- C. Dilates coronary arteries
- D. Treats rhythm disturbances
Correct answer: A
Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.
5. A client is receiving moderate sedation with Diazepam IV and is oversedated. Which of the following medications should the nurse anticipate administering to this client?
- A. Ketamine
- B. Naltrexone
- C. Flumazenil
- D. Fluvoxamine
Correct answer: C
Rationale: Flumazenil is a specific benzodiazepine antagonist that competitively reverses the sedative effects of benzodiazepines like Diazepam. In cases of oversedation or respiratory depression caused by benzodiazepines, administering Flumazenil can help reverse the effects and restore the client's consciousness and respiratory drive. Ketamine (Choice A) is a dissociative anesthetic and not used to reverse benzodiazepine sedation. Naltrexone (Choice B) is an opioid receptor antagonist and not indicated for benzodiazepine oversedation. Fluvoxamine (Choice D) is an antidepressant and not used to counteract benzodiazepine sedation.
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