a nurse is preparing to administer medications to a 4 month old infant which of the following pharmacokinetic principles should the nurse consider whe
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Nursing Elites

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.)

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. Which part of the body requires a continuous supply of oxygen and vital nutrients to support life and death?

Correct answer: C

Rationale: The brain requires a continuous supply of oxygen and vital nutrients to support life and prevent death. Oxygen and nutrients are essential for brain function, and any interruption in the supply can lead to serious consequences, including brain damage or death. Therefore, ensuring a constant flow of oxygen and nutrients to the brain is vital for survival and overall health.

3. A nurse on a medical-surgical unit administers a hypnotic medication to an older adult client at 2100. The next morning, the client is drowsy and wants to sleep instead of eating breakfast. Which of the following factors should the nurse identify as a possible reason for the client's drowsiness?

Correct answer: C

Rationale: In older adults, reduced hepatic function can lead to prolonged effects of medications metabolized by the liver. This situation can result in increased drug levels in the body, causing drowsiness and other side effects. Adjusting the dosage of the hypnotic medication may be necessary to prevent such adverse effects in older adult clients. Choice A, reduced cardiac function, is not directly related to the metabolism of the medication and is unlikely to cause drowsiness. Choice B, first-pass effect, refers to the initial metabolism of a drug in the liver before it enters circulation, but it is not the cause of drowsiness in this scenario. Choice D, increased gastric motility, does not play a significant role in the metabolism of the medication and is not a likely cause of the client's drowsiness.

4. A healthcare professional is preparing to administer a dose of Hydromorphone IV to a client. Which of the following actions should the healthcare professional take?

Correct answer: A

Rationale: The correct action for the healthcare professional preparing to administer IV Hydromorphone to a client is to administer the medication over 5 minutes. This slow administration is crucial to reduce the risk of hypotension and respiratory depression. Administering the medication rapidly can lead to adverse effects. Option B, administering Naloxone prior to Hydromorphone, is incorrect because Naloxone is used as an antidote for opioid overdose, not as a routine pre-medication. Option C, assessing the client's blood pressure before administration, is important but not the immediate action to take to reduce adverse effects of Hydromorphone. Option D, injecting the medication into the client's subcutaneous tissue, is incorrect as Hydromorphone is meant for intravenous administration for rapid onset of action.

5. A client has a new prescription for Sulfasalazine for the treatment of Crohn's disease. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct answer is A: 'Expect orange-yellow discoloration of urine and skin.' Sulfasalazine can cause this harmless side effect, which does not require discontinuation of the medication. Option B is incorrect because Sulfasalazine is usually taken with food to minimize gastrointestinal side effects. Option C is incorrect as a sore throat is not a common reason to stop the medication. Option D is not directly related to the side effects of Sulfasalazine.

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