ATI RN
ATI Pharmacology Proctored Exam 2024
1. A client with a UTI and a history of recurrent infections asks why the provider has not yet prescribed an antibiotic. The nurse should explain that the provider has to wait for the results of which of the following laboratory tests to identify which antibiotic to prescribe?
- A. Gram stain
- B. Culture
- C. Sensitivity
- D. Specific gravity
Correct answer: C
Rationale: In the case of a UTI, a sensitivity test is crucial as it identifies the most effective antibiotic to target the specific microorganism causing the infection. This test helps in prescribing the appropriate antibiotic for successful treatment and preventing antibiotic resistance. While a Gram stain and culture are important in diagnosing a UTI, the sensitivity test specifically determines the most suitable antibiotic. Specific gravity, on the other hand, is not related to identifying the appropriate antibiotic for a UTI.
2. A nurse is providing teaching to a client who has a new prescription for Metoprolol. Which of the following statements should the nurse include?
- A. This medication may make you feel dizzy at first.
- B. You should avoid foods that are high in fat.
- C. Take the medication in the morning.
- D. You may experience a rapid heart rate while taking this medication.
Correct answer: A
Rationale: Metoprolol, a beta-blocker, can cause dizziness, especially when starting the medication. The nurse should inform the client to change positions slowly to avoid dizziness and falls.
3. What is the action of Nitroglycerin?
- A. Dilates the Bronchi
- B. Reduces Blood Glucose
- C. Reduces Nausea
- D. Dilates Coronary Arteries
Correct answer: D
Rationale: Nitroglycerin acts by dilating the coronary arteries, leading to increased blood flow and oxygen supply to the heart. This helps in relieving angina symptoms by reducing the heart's workload and improving blood supply to the myocardium. Choices A, B, and C are incorrect because Nitroglycerin's primary action is not related to dilating bronchi, reducing blood glucose, or reducing nausea.
4. A provider prescribes phenobarbital for a client who has a seizure disorder. The medication has a long half-life of 4 days. How many times per day should the nurse expect to administer this medication?
- A. One
- B. Two
- C. Three
- D. Four
Correct answer: A
Rationale: Phenobarbital, with a long half-life of 4 days, remains at therapeutic levels in the body for an extended period. Due to this prolonged duration of action, the nurse should administer phenobarbital once a day to maintain a consistent therapeutic effect without the need for multiple daily doses. Administering the medication more than once a day would not be necessary and could increase the risk of side effects or toxicity. Therefore, the correct answer is to administer phenobarbital once a day.
5. A client is receiving chemotherapy and has a prescription for ondansetron IV for nausea and vomiting. The nurse should monitor the client for which of the following adverse effects?
- A. Hypotension
- B. Bradycardia
- C. Tremors
- D. Urinary retention
Correct answer: C
Rationale: The correct answer is C: Tremors. Ondansetron can cause tremors as an adverse effect. Monitoring for tremors is essential as it can indicate a potential adverse reaction to the medication. Hypotension (choice A) and bradycardia (choice B) are not commonly associated with ondansetron. Urinary retention (choice D) is also not a typical adverse effect of ondansetron, making choices A, B, and D incorrect in this scenario.
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