ATI RN
ATI Capstone Pharmacology Assessment 1
1. A client has been prescribed vasopressin for the treatment of diabetes insipidus. What is the expected pharmacologic action of this medication?
- A. To stimulate the pancreas to secrete insulin
- B. To slow the absorption of glucose in the intestine
- C. To increase reabsorption of water in the renal tubules
- D. To increase blood pressure
Correct answer: C
Rationale: The correct answer is C: To increase reabsorption of water in the renal tubules. Vasopressin, also known as antidiuretic hormone (ADH), works by increasing the reabsorption of water in the renal tubules, which helps to concentrate urine and reduce excessive urination in diabetes insipidus. Choice A is incorrect as vasopressin does not stimulate the pancreas to secrete insulin. Choice B is incorrect as vasopressin does not affect the absorption of glucose in the intestine. Choice D is incorrect as vasopressin's primary action is not to increase blood pressure, although it can have some vasoconstrictive effects.
2. A nurse is preparing to administer nitroglycerin ointment to a client. Which of the following actions should the nurse take?
- A. Apply the ointment to the client's hairless chest
- B. Rub the ointment gently into the skin
- C. Cover the applied ointment with a transparent dressing
- D. Massage the ointment into the skin
Correct answer: A
Rationale: The correct action is to apply the nitroglycerin ointment to a hairless area of the client's chest, back, or upper arms. This allows for better absorption of the medication. Choice B is incorrect because rubbing the ointment gently into the skin may be appropriate, but the primary action is to ensure application on a hairless area. Choice C is incorrect as covering the ointment with a transparent dressing is not a standard practice for nitroglycerin ointment administration. Choice D is incorrect because massaging the ointment into the skin is not recommended, as it can alter absorption rates.
3. A healthcare provider is reviewing the client's history before administering opioid pain medication. Which of the following conditions is a contraindication to opioid therapy?
- A. Asthma
- B. Renal failure
- C. Diabetes mellitus
- D. Obesity
Correct answer: B
Rationale: Renal failure is a contraindication to opioid therapy due to the risk of drug accumulation and toxicity. Asthma, diabetes mellitus, and obesity are not contraindications to opioid therapy. Asthma is a respiratory condition that can be managed alongside opioids, diabetes mellitus and obesity do not directly contraindicate opioid therapy.
4. A healthcare provider is preparing to administer a measles, mumps, and rubella (MMR) vaccine to an adult client. Which of the following is a contraindication to this vaccine?
- A. The possibility of pregnancy within 4 weeks
- B. Client allergy to strawberries
- C. Client history of genital herpes
- D. The possibility of overseas travel in the next month
Correct answer: A
Rationale: The correct answer is A. Pregnancy or the possibility of pregnancy within 4 weeks is a contraindication for receiving the MMR vaccine. Choice B, client allergy to strawberries, is not a contraindication to the MMR vaccine. Choice C, client history of genital herpes, is not a contraindication for the MMR vaccine. Choice D, the possibility of overseas travel in the next month, is not a contraindication to the MMR vaccine.
5. A nurse is providing client education regarding lithium therapy. Which of the following instructions should the nurse include?
- A. Take with food to decrease nausea
- B. Avoid excessive intake of caffeinated beverages
- C. Monitor for signs of dehydration
- D. Restrict salt intake to prevent water retention
Correct answer: B
Rationale: The correct answer is B. The nurse should instruct the client to avoid excessive intake of caffeinated beverages as they can interfere with lithium levels. Option A is incorrect as lithium is usually recommended to be taken on an empty stomach. Option C is not directly related to lithium therapy. Option D is not a typical instruction for lithium therapy.
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