ATI RN
ATI Pharmacology
1. A client is receiving heparin therapy. Which laboratory value should be monitored by the nurse to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The activated partial thromboplastin time (aPTT) is specifically used to monitor the effectiveness of heparin therapy. It should be maintained at 1.5 to 2 times the normal level. Monitoring aPTT helps ensure that the therapeutic range of heparin is achieved to prevent clot formation while minimizing the risk of bleeding complications. Choice A (PT) is incorrect as it is used to monitor warfarin therapy, not heparin. Choice C (INR) is also incorrect as it is primarily used to monitor warfarin therapy. Choice D (Platelet count) is not directly related to monitoring the effectiveness of heparin therapy.
2. A client has a new prescription for Levofloxacin. Which of the following instructions should be included in the discharge instructions?
- A. Take this medication with food.
- B. Avoid taking this medication with dairy products.
- C. Take this medication at bedtime.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct answer is B: 'Avoid taking this medication with dairy products.' Levofloxacin should not be taken with dairy products because calcium can interfere with the absorption of the medication. It is recommended to take Levofloxacin 1 hour before or 2 hours after consuming dairy products to ensure optimal absorption and effectiveness of the medication. Choices A, C, and D are incorrect. Choice A is not recommended as Levofloxacin is usually taken on an empty stomach. Choice C is not necessary information for taking Levofloxacin. Choice D is unrelated to the administration of Levofloxacin.
3. A client with OCD has a new prescription for Paroxetine. Which of the following instructions should the nurse include?
- A. It can take several weeks before you feel like the medication is helping.
- B. Take the medication just before bedtime to promote sleep.
- C. You should take the medication when needed for obsessive urges.
- D. Monitor for weight gain while taking this medication.
Correct answer: A
Rationale: The correct answer is A. Paroxetine, an antidepressant commonly used for OCD, typically takes 1 to 4 weeks before the client experiences the full therapeutic benefit. Therefore, informing the client that it may take several weeks before feeling the medication's effects is crucial to manage expectations and ensure compliance with the treatment plan. Choice B is incorrect because Paroxetine is usually taken in the morning due to its activating effects and may cause insomnia if taken before bedtime. Choice C is incorrect because Paroxetine should be taken regularly as prescribed, not just when experiencing obsessive urges. Choice D is incorrect because although weight gain can be a side effect of Paroxetine, it is not a priority instruction compared to the delayed onset of therapeutic effects.
4. A client is receiving discharge instructions for a new prescription of Prednisone. Which of the following dietary instructions should be included?
- A. Increase your intake of potassium-rich foods.
- B. Increase your intake of dairy products.
- C. Avoid foods high in vitamin K.
- D. Decrease your intake of protein.
Correct answer: A
Rationale: When a client is prescribed Prednisone, there is a risk of potassium depletion due to the medication. Therefore, it is essential to increase the intake of potassium-rich foods such as bananas, oranges, and spinach to help maintain adequate potassium levels in the body and prevent complications associated with low potassium levels. Choice B and D are incorrect as there is no specific need to increase dairy products or decrease protein intake with Prednisone. Choice C is also incorrect as avoiding foods high in vitamin K is more relevant for clients taking anticoagulants like warfarin.
5. A drug ending in the suffix (tidine) is considered a ______.
- A. Antidepressant
- B. Protease inhibitor
- C. Beta antagonist
- D. H antagonist
Correct answer: D
Rationale: Drugs ending in -tidine are histamine (H2) receptor antagonists, which block the action of histamine at the H2 receptors, commonly used to reduce stomach acid production. Therefore, the correct answer is an 'H antagonist.' It is essential to be familiar with drug suffixes as they can provide clues to the drug's class and function.
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