ATI RN
ATI Proctored Pharmacology Test
1. A healthcare professional in a provider's clinic is caring for a client who reports erectile dysfunction and requests a prescription for sildenafil. Which of the following medications currently prescribed for the client is a contraindication to taking sildenafil?
- A. Isosorbide
- B. Phenytoin
- C. Metronidazole
- D. Prednisone
Correct answer: A
Rationale: Sildenafil is contraindicated with nitrates like isosorbide due to the risk of severe hypotension. Isosorbide is a nitrate that can potentiate the hypotensive effects of sildenafil, leading to a dangerous drop in blood pressure. Therefore, it is essential to avoid concurrent use of isosorbide and sildenafil to prevent adverse effects. Phenytoin, metronidazole, and prednisone do not have significant interactions with sildenafil and are not contraindicated when used together.
2. A client reports 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. When used for more than 5 days, nasal sympathomimetic medications like phenylephrine can lead to rebound nasal congestion, which is an adverse effect to be assessed in the client. Sedation (choice A) is not a common adverse effect of phenylephrine. Productive cough (choice C) and constipation (choice D) are also not typical adverse effects associated with phenylephrine use.
3. Why has an ACE inhibitor been prescribed following an MI?
- A. “This medication will lower your potassium level.”
- B. “ACE inhibitors have been found to reduce mortality following MI.”
- C. “ACE inhibitors are always prescribed with a beta blocker and calcium channel blocker following an MI.”
- D. “This medication will treat your hypotension.”
Correct answer: B
Rationale: Following a myocardial infarction (MI), ACE inhibitors are commonly prescribed due to their proven benefit in reducing mortality and improving outcomes post-MI. These medications help by decreasing the workload of the heart, preventing remodeling of the heart chambers, and improving survival rates. While ACE inhibitors may have effects on potassium levels, the primary reason for their prescription post-MI is their mortality-reducing properties.
4. When educating a client with a new prescription for Amlodipine, which instruction should the nurse provide?
- A. Increase your intake of dairy products.
- B. Avoid driving until you see how the medication affects you.
- C. Stop taking the medication if you develop a dry cough.
- D. Take the medication at bedtime.
Correct answer: B
Rationale: The correct answer is to advise the client to avoid driving until they understand the medication's effects. Amlodipine can cause dizziness, making it unsafe to drive until the client knows how the medication affects them. This instruction promotes client safety and prevents potential accidents due to medication side effects.
5. A healthcare professional is preparing to administer Pamidronate to a client who has bone pain related to cancer. Which of the following precautions should the healthcare professional take when administering pamidronate?
- A. Inspect the IV site for redness and irritation when changing the intravenous patch.
- B. Assess the IV site for thrombophlebitis frequently during administration.
- C. Instruct the client to sit upright or stand for 30 min following intravenous administration.
- D. Watch for manifestations of anaphylaxis for 20 min after intramuscular administration.
Correct answer: B
Rationale: Pamidronate is administered through intravenous (IV) infusion. As this medication can be irritating to veins, the healthcare professional should carefully assess the IV site for thrombophlebitis during administration to prevent potential complications. Choice A is incorrect as Pamidronate is not administered via intradermal patch. Choice C is incorrect as it does not relate to the administration of Pamidronate. Choice D is incorrect as Pamidronate is not administered intramuscularly.
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