ATI RN
Pharmacology ATI Proctored Exam 2023
1. Why should the nitrate patch be off for 8 hours per day?
- A. “There is no reason to take the patch off each day.”
- B. “The patch can be addictive; leaving it off reduces the addiction.”
- C. “You should only leave the patch off for 15 minutes.”
- D. “Leaving the patch off for 8 hours per day helps to delay the development of tolerance.”
Correct answer: D
Rationale: Removing the nitrate patch for 8 hours each day is essential to prevent the body from developing tolerance to the medication. By allowing the body to have a drug-free period, the effectiveness of the medication is maintained over time. This practice helps in ensuring that the nitrate patch continues to provide its intended therapeutic effects without diminishing its efficacy. Therefore, it is important for the client to adhere to the prescribed schedule of removing the patch for 8 hours daily to optimize the treatment outcomes.
2. A client is taking Digoxin and has a new prescription for Colesevelam. Which of the following instructions should the nurse include in the teaching?
- A. Take digoxin with your morning dose of colesevelam.
- B. Your sodium and potassium levels will be monitored periodically while taking colesevelam.
- C. Watch for bleeding or bruising while taking colesevelam.
- D. Take colesevelam with food and at least one glass of water.
Correct answer: D
Rationale: When taking colesevelam, it should be administered with food and at least 8 oz of water to ensure proper absorption and reduce the risk of gastrointestinal side effects. Taking colesevelam with food also helps in binding to bile acids efficiently. Options A, B, and C are incorrect because they do not provide the necessary instruction for taking colesevelam correctly or monitoring specific side effects associated with this medication.
3. A healthcare provider is caring for a group of individuals who are not immune to Varicella. The healthcare provider should prepare to administer the Varicella vaccine at this time to which of the following individuals?
- A. 24-year-old woman in the third trimester of pregnancy
- B. 12-year-old child who has a severe allergy to neomycin
- C. 2-month-old infant who has no health problems
- D. 32-year-old man who has essential hypertension
Correct answer: D
Rationale: The correct answer is the 32-year-old man with essential hypertension. Individuals not immune to Varicella should receive the vaccine if they did not get two doses earlier. Essential hypertension is not a contraindication for the Varicella vaccine. Administering the vaccine to pregnant women, individuals with severe neomycin allergies, or infants is contraindicated. Pregnant women should not receive the Varicella vaccine due to the potential risk to the fetus. Severe neomycin allergies are a contraindication because neomycin is present in the vaccine. Infants under 12 months of age are generally not vaccinated against Varicella unless there are specific circumstances or recommendations.
4. A nurse reviewing a client's medical record notes a new prescription for verifying the trough level of the client's medication. Which of the following actions should the nurse take?
- A. Obtain a blood specimen immediately prior to administering the next dose of medication.
- B. Verify that the client has been taking the medication for 24 hours before obtaining a blood specimen.
- C. Ask the client to provide a urine specimen after the next dose of medication.
- D. Administer the medication and obtain a blood specimen 30 minutes later.
Correct answer: A
Rationale: To verify the trough levels of a medication accurately, the nurse should obtain a blood specimen immediately before administering the next dose of the medication. The trough level represents the lowest concentration of the medication in the bloodstream, typically right before the next dose is due. This timing ensures an accurate assessment of the drug's concentration in the body at its lowest point, aiding in determining the drug's effectiveness and potential toxicity levels. Choice B is incorrect because waiting for 24 hours would not provide the trough level. Choice C is incorrect as urine specimens are not used to measure trough levels. Choice D is incorrect as obtaining a blood specimen 30 minutes after administering the medication would not reflect the trough level.
5. During discharge instructions, a client with a new prescription for Phenytoin should be advised to take which of the following actions?
- A. Brush and floss your teeth regularly.
- B. Avoid drinking grapefruit juice.
- C. Take this medication on an empty stomach.
- D. Increase your intake of calcium-rich foods.
Correct answer: A
Rationale: The correct instruction for a client with a new prescription for Phenytoin is to brush and floss their teeth regularly. Phenytoin is known to cause gingival hyperplasia, a condition that affects the gums. By maintaining good oral hygiene practices such as regular brushing and flossing, the client can help minimize the risk of developing this side effect. Choices B, C, and D are incorrect. Avoiding grapefruit juice is more relevant for medications affected by grapefruit juice metabolism, taking medication on an empty stomach is not specifically indicated for Phenytoin, and increasing calcium-rich foods is not directly related to the side effects or administration of Phenytoin.
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