Nursing Elites

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 client has a new prescription for Losartan. Which of the following instructions should be included?

• A. Avoid drinking grapefruit juice.
• B. Take this medication with a full glass of water.
• C. Take this medication on an empty stomach.
• D. Monitor for signs of dehydration.

Correct answer: D

Rationale: The correct instruction for a client prescribed Losartan is to monitor for signs of dehydration. Losartan can lead to dehydration, so it is essential for the client to be vigilant for symptoms such as dry mouth, increased thirst, and decreased urine output. Providing the instruction to monitor for signs of dehydration ensures the client's safety and helps in early identification of any potential issues related to dehydration. Choices A, B, and C are incorrect as Losartan does not interact with grapefruit juice, does not require specific instructions regarding water intake, and does not need to be taken on an empty stomach.

3. A healthcare professional in a provider's clinic is caring for a client who reports erectile dysfunction and requests a prescription for sildenafil. Which of the following medications currently prescribed for the client is a contraindication to taking sildenafil?

• A. Isosorbide
• B. Phenytoin
• C. Metronidazole
• D. Prednisone

Correct answer: A

Rationale: Sildenafil is contraindicated with nitrates like isosorbide due to the risk of severe hypotension. Isosorbide is a nitrate that can potentiate the hypotensive effects of sildenafil, leading to a dangerous drop in blood pressure. Therefore, it is essential to avoid concurrent use of isosorbide and sildenafil to prevent adverse effects. Phenytoin, metronidazole, and prednisone do not have significant interactions with sildenafil and are not contraindicated when used together.

4. A client has a new prescription for Nitroglycerin sublingual tablets. Which of the following instructions should the nurse include in the discharge teaching?

• A. Take one tablet every 15 minutes until pain is relieved.
• B. Take one tablet every 5 minutes, up to three doses.
• C. Take one tablet at bedtime.
• D. Take one tablet on an empty stomach.

Correct answer: B

Rationale: The correct instruction for Nitroglycerin sublingual tablets is to take one tablet at the onset of chest pain, then repeat every 5 minutes for up to three doses. This regimen helps in relieving angina symptoms effectively. Option A of taking one tablet every 15 minutes is too infrequent and may delay symptom relief. Option C of taking one tablet at bedtime is not appropriate as Nitroglycerin is used for immediate relief of angina. Option D of taking one tablet on an empty stomach is irrelevant since Nitroglycerin is not affected by food intake.

5. When educating a patient on taking levothyroxine, a drug used to balance thyroid activity, what should you include in their education?

• A. Don't disregard side effects and consult your healthcare professionals
• B. Take this at the same time every day
• C. Thyroid tests are necessary while taking this drug
• D. It is not recommended to take this drug if you have recently had a myocardial infarction

Correct answer: B

Rationale: The correct answer is to take levothyroxine at the same time every day. Consistent timing helps maintain stable thyroid levels, ensuring the effectiveness of the medication. It is important to establish a routine to optimize its therapeutic benefits. Choice A is incorrect as patients should not ignore side effects but should consult healthcare professionals if they experience any. Choice C is incorrect because thyroid tests may still be necessary to monitor thyroid function while on levothyroxine. Choice D is incorrect as it is not advisable to take levothyroxine if the patient has recently had a myocardial infarction without consulting their healthcare provider.

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