ATI RN
ATI Proctored Pharmacology 2023
1. When administering medications to a 4-month-old infant, which of the following pharmacokinetic principles should be considered? (Select all that apply.)
- A. Infants have a more rapid gastric emptying time.
- B. Infants have immature liver function.
- C. Infants' blood-brain barrier is poorly developed.
- D. Infants have an increased ability to absorb topical medications.
Correct answer: B
Rationale: When administering medications to a 4-month-old infant, the pharmacokinetic principle to consider is that infants have immature liver function until 1 year of age. This requires medications metabolized by the liver to be administered in smaller dosages. While infants do have a more rapid gastric emptying time, immature liver function is a more critical pharmacokinetic consideration in this context. Additionally, although infants have a poorly developed blood-brain barrier, this relates more to pharmacodynamic effects rather than pharmacokinetic principles. The statement about infants having an increased ability to absorb topical medications is not directly related to pharmacokinetic principles, making choice B the correct answer.
2. A healthcare professional is preparing to administer furosemide 80 mg PO daily. The available furosemide oral solution is 10 mg/1 mL. How many mL should the healthcare professional administer?
- A. 8 mL
- B. 10 mL
- C. 6 mL
- D. 12 mL
Correct answer: A
Rationale: To determine the volume to administer, divide the desired dose by the available concentration. In this case, 80 mg divided by 10 mg/mL equals 8 mL. Therefore, the healthcare professional should administer 8 mL of furosemide oral solution. Choice B, 10 mL, is incorrect as it does not reflect the accurate calculation. Choices C and D, 6 mL and 12 mL respectively, are also incorrect as they do not match the correct calculation based on the provided concentration and dose.
3. A client has a new prescription for clonidine to treat hypertension. Which of the following instructions should the nurse include?
- A. Discontinue the medication if a rash develops.
- B. Expect increased salivation during the first few weeks of therapy.
- C. Avoid driving until the client's reaction to the medication is known.
- D. Stop the medication if you experience a dry mouth.
Correct answer: C
Rationale: The correct instruction for a client starting clonidine therapy for hypertension is to avoid driving until their reaction to the medication is known. Clonidine can cause drowsiness, so it is important for the client to refrain from activities that require alertness until they are aware of how the medication affects them. Choice A is incorrect because a rash is not a common side effect of clonidine. Choice B is incorrect as increased salivation is not an expected side effect of clonidine. Choice D is also incorrect as dry mouth is a common side effect of clonidine, but it is not a reason to stop the medication unless severe or bothersome. Therefore, the priority instruction for the nurse to include is to advise the client to avoid driving until their reaction to the medication is known to ensure safety.
4. When completing a nursing history for a client taking Simvastatin, which of the following disorders should the nurse identify as a contraindication to adding Ezetimibe to the client's medications?
- A. History of severe constipation
- B. History of hypertension
- C. Active hepatitis C
- D. Type 2 diabetes mellitus
Correct answer: C
Rationale: Ezetimibe is contraindicated in clients with active moderate-to-severe liver disorders, particularly if they are already on a statin like simvastatin. Hepatitis C is a liver condition that can be exacerbated by Ezetimibe, leading to potential complications. Therefore, the nurse should identify active hepatitis C as a contraindication to adding Ezetimibe to the client's medications. Choices A, B, and D are incorrect because they are not directly related to the contraindication of Ezetimibe in clients taking Simvastatin.
5. A client has a new prescription for Maraviroc to treat HIV infection. The healthcare provider should monitor the client for which of the following adverse reactions?
- A. Liver failure
- B. Kidney failure
- C. Pancreatitis
- D. Severe allergic reactions
Correct answer: D
Rationale: The correct answer is D: Severe allergic reactions. Maraviroc, used to treat HIV infection, can lead to severe allergic reactions, including hepatotoxicity. While liver failure is a potential adverse effect, it is often preceded by hepatotoxicity manifestations like jaundice or right upper quadrant pain. Kidney failure and pancreatitis are not typically associated with Maraviroc use. Therefore, monitoring for signs of severe allergic reactions and hepatotoxicity is crucial for early detection and intervention.
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