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ATI Pharmacology Test Bank
1. Which of the following drugs has a therapeutic effect that prevents thromboembolic events?
- A. Warfarin
- B. Amlodipine
- C. Nitroglycerin
- D. Clopidogrel
Correct answer: A
Rationale: The correct answer is Warfarin. Warfarin is an anticoagulant medication that helps prevent thromboembolic events by inhibiting the formation of blood clots. It is commonly used to reduce the risk of strokes or heart attacks in patients at risk for thrombosis.
2. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?
- A. Antiplatelets
- B. Beta-adrenergic blockers
- C. ACE inhibitors
- D. Calcium channel blockers
Correct answer: B
Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.
3. During an admission assessment for a client with severe Aspirin toxicity, what finding should the nurse expect?
- A. Body temperature 35°C (95°F)
- B. Lung crackles
- C. Cool, dry skin
- D. Respiratory depression
Correct answer: D
Rationale: In severe Aspirin toxicity, respiratory depression can occur due to increasing respiratory acidosis. Aspirin toxicity leads to metabolic acidosis, stimulating the respiratory center in the brain to increase the respiratory rate initially. However, as the toxicity worsens, respiratory muscle fatigue and depression can occur, resulting in respiratory depression. This can lead to hypoxia, respiratory failure, and ultimately, respiratory arrest.
4. A healthcare provider is reviewing a client's health record and notes that the client experiences permanent extrapyramidal effects caused by a previous medication. The healthcare provider should recognize that the medication affected which of the following systems in the client?
- A. Cardiovascular
- B. Immune
- C. Central nervous
- D. Gastrointestinal
Correct answer: C
Rationale: The correct answer is C: Central nervous. Extrapyramidal effects are movement disorders that can be caused by certain medications affecting the central nervous system, such as typical antipsychotic medications. These effects can lead to symptoms like tremors, muscle rigidity, and involuntary movements, which are all related to disruptions in the central nervous system. Choices A, B, and D are incorrect because extrapyramidal effects are specifically associated with the central nervous system and not the cardiovascular, immune, or gastrointestinal systems.
5. A client has a new prescription for Ferrous sulfate. Which of the following instructions should be included?
- A. Take this medication with milk.
- B. Take this medication on an empty stomach.
- C. Take this medication before bedtime.
- D. Take this medication with antacids.
Correct answer: B
Rationale: The correct answer is B: 'Take this medication on an empty stomach.' Ferrous sulfate is best absorbed on an empty stomach. Instruct the client to take it 1 hour before or 2 hours after meals to maximize absorption and avoid interactions with food or beverages that may decrease absorption. Choice A is incorrect because taking Ferrous sulfate with milk can decrease its absorption. Choice C is incorrect as there is no specific benefit to taking it before bedtime. Choice D is incorrect as antacids can interfere with the absorption of Ferrous sulfate.
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