ATI RN
ATI Pharmacology Proctored
1. A drug ending in the suffix (navir) is considered a ______.
- A. Antidepressant
- B. Protease inhibitor
- C. Beta antagonist
- D. H antagonist
Correct answer: B
Rationale: When a drug name ends in the suffix -navir, it indicates that the drug is a protease inhibitor. Protease inhibitors are commonly used in antiviral therapy to treat infections by inhibiting viral replication. Therefore, the correct answer is B: Protease inhibitor.
2. A client has a new prescription for Hydrochlorothiazide. Which of the following instructions should the nurse include?
- A. Take this medication in the morning.
- B. Consume potassium-rich foods.
- C. Take this medication with food.
- D. Monitor for signs of dehydration.
Correct answer: D
Rationale: The correct answer is to monitor for signs of dehydration. Hydrochlorothiazide is a diuretic that can lead to fluid loss and dehydration. The client should be educated to watch for symptoms like dry mouth, increased thirst, weakness, dizziness, and decreased urine output. Prompt recognition of dehydration signs is crucial for timely intervention and prevention of complications. Choices A, B, and C are incorrect. Taking Hydrochlorothiazide in the morning is not a specific instruction for this medication. While potassium-rich foods can be important when taking certain medications, it is not the priority instruction for Hydrochlorothiazide. Taking this medication with food may help reduce stomach upset but is not the most critical instruction for a diuretic like Hydrochlorothiazide.
3. A healthcare provider is reviewing the health care record of a client who is asking about conjugated equine estrogens. The provider should inform the client this medication is contraindicated in which of the following conditions?
- A. Atrophic vaginitis
- B. Dysfunctional uterine bleeding
- C. Osteoporosis
- D. Thrombophlebitis
Correct answer: D
Rationale: Conjugated equine estrogens are contraindicated in clients with a history of thrombophlebitis due to the increased risk of thrombotic events associated with estrogen use. Thrombophlebitis is characterized by inflammation of a vein with the formation of a clot, and estrogen can further exacerbate this condition, leading to serious complications. Choices A, B, and C are not contraindications for conjugated equine estrogens. Atrophic vaginitis and osteoporosis are conditions where estrogen therapy may actually be indicated. Dysfunctional uterine bleeding is another condition where estrogen therapy can be used to help regulate menstrual bleeding.
4. What is pharmacodynamics?
- A. The medical reference summarizing standards of drug purity, strength, and directions for synthesis
- B. The drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions
- C. The maximum response that a drug can produce
- D. Movements of the drugs throughout the body
Correct answer: B
Rationale: Pharmacodynamics refers to the drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions. It involves understanding how drugs interact with the body at the molecular level to produce their effects, including mechanisms of action, receptor binding, and downstream physiological responses. Choice A is incorrect because it describes pharmacopeia, which is a reference book containing standards for drugs. Choice C refers to efficacy, which is the maximum effect a drug can produce. Choice D describes pharmacokinetics, which focuses on the movement of drugs within the body.
5. When a client is receiving treatment with methotrexate, which supplement should the nurse instruct the client to take?
- A. Folic acid
- B. Vitamin D
- C. Calcium
- D. Iron
Correct answer: A
Rationale: Folic acid supplementation is crucial for clients undergoing methotrexate treatment because methotrexate functions as a folic acid antagonist. By supplementing with folic acid, the risk of methotrexate toxicity can be minimized, improving the treatment's effectiveness and safety. Vitamin D, calcium, and iron are not specifically recommended in conjunction with methotrexate therapy and may not provide the same protective benefits as folic acid.
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