ATI RN
ATI Pharmacology Test Bank
1. What is the therapeutic use of Phenytoin?
- A. Replacement in hypothyroidism to restore normal hormonal balance
- B. Diminished accumulation of acid in the gastric lumen with lessened gastroesophageal reflux
- C. Diminished seizure activity, termination of ventricular arrhythmias
- D. Prevention of thrombus formation, prevention of extension of existing thrombi
Correct answer: C
Rationale: Phenytoin is primarily used to diminish seizure activity and is effective in terminating ventricular arrhythmias. It works by stabilizing neuronal membranes, reducing repetitive neuronal firing, and limiting the spread of seizure activity in the brain. While phenytoin does not have a direct role in preventing thrombus formation or extending existing thrombi, it is crucial in managing seizures and certain arrhythmias.
2. A healthcare professional is preparing to administer IV Vancomycin to a client who has a systemic infection. Which of the following actions should the healthcare professional take?
- A. Administer the medication rapidly over 15 minutes.
- B. Monitor the client for hypertension during infusion.
- C. Administer a test dose before the full dose.
- D. Monitor the client for Red Man Syndrome.
Correct answer: D
Rationale: The correct action for the healthcare professional is to monitor the client for Red Man Syndrome. Red Man Syndrome is a common adverse reaction to Vancomycin characterized by flushing, rash, and hypotension. It is important to monitor the client for these symptoms to intervene promptly if they occur.
3. When teaching a client with a new prescription for Ramelteon, which of the following foods should the nurse instruct the client to avoid?
- A. Baked potato
- B. Fried chicken
- C. Whole-grain bread
- D. Citrus fruits
Correct answer: B
Rationale: The correct answer is B: Fried chicken. High-fat foods, like fried chicken, can delay the absorption of Ramelteon. It is important for the client to avoid such foods to ensure the medication's effectiveness. Baked potato, whole-grain bread, and citrus fruits do not have a significant interaction with Ramelteon and can be consumed safely while taking the medication.
4. 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.
5. What is the therapeutic use of Alprazolam?
- A. Preventing thrombus formation
- B. Relief of anxiety
- C. Decreasing the risk of stroke
- D. Increasing urinary output
Correct answer: B
Rationale: The therapeutic use of Alprazolam is for the relief of anxiety. Alprazolam belongs to a class of medications known as benzodiazepines, which are commonly prescribed to manage anxiety disorders and panic attacks. It works by enhancing the effects of a natural chemical in the body (GABA) to produce a calming effect on the brain and nerves, thereby alleviating symptoms of anxiety.
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