Nursing Elites

1. A patient is prescribed acetaminophen 650 mg PO every 6 hr PRN for pain. The available acetaminophen liquid is 500 mg/5 mL. How many mL should the nurse administer per dose?

• A. 6.5 mL
• B. 7 mL
• C. 5 mL
• D. 8 mL

Correct answer: A

Rationale: To calculate the volume to administer: (Desired dose / Concentration) = Volume to administer. In this case, (650 mg / 500 mg) x 5 mL = 6.5 mL. Therefore, the nurse should administer 6.5 mL of acetaminophen liquid per dose to provide the prescribed 650 mg of acetaminophen. Choice B, 7 mL, is incorrect because the correct calculation results in 6.5 mL. Choice C, 5 mL, is incorrect as it is the concentration of the acetaminophen liquid, not the final volume needed. Choice D, 8 mL, is incorrect because it does not reflect the accurate calculation based on the prescription and concentration.

2. When educating a client with a new prescription for Losartan, which instruction should the nurse provide?

• A. Avoid consuming grapefruit juice.
• B. Take this medication with a full glass of water.
• C. Take this medication with food.
• D. Monitor for signs of dehydration.

Correct answer: D

Rationale: The correct answer is to instruct the client to monitor for signs of dehydration when taking Losartan. Losartan can lead to dehydration, so it is crucial for the client to watch out for symptoms like dry mouth, increased thirst, and reduced urine output. Monitoring for these signs can help prevent complications associated with dehydration while taking this medication. Choices A, B, and C are incorrect because Losartan is not known to have interactions with grapefruit juice, does not require a specific amount of water for intake, and can be taken with or without food.

3. A client has a new prescription for a Nitroglycerin transdermal patch for Angina Pectoris. Which of the following instructions should the nurse include?

• A. Remove the patch each evening.
• B. Do not cut the patch in half even if angina attacks are under control.
• C. Remove the nitroglycerin patch for 30 minutes if a headache occurs.
• D. Apply a new patch every 48 hours.

Correct answer: A

Rationale: The correct instruction for a client using a Nitroglycerin transdermal patch is to remove the patch each evening to prevent tolerance. This allows for a nitrate-free period of 10 to 12 hours during each 24-hour period, reducing the risk of developing tolerance to the medication. Choice B is incorrect because cutting the patch could alter the dose delivery and is not recommended. Choice C is incorrect as removing the patch for 30 minutes when a headache occurs may not be effective in managing symptoms. Choice D is incorrect as Nitroglycerin patches are usually applied once daily, not every 48 hours.

4. A client has a new prescription for erythromycin. Which of the following statements by the client indicates an understanding of the teaching?

• A. I should take this medication with a full glass of water.
• B. I should avoid direct sunlight while taking this medication.
• C. I will take this medication on an empty stomach.
• D. I should take an antacid 30 minutes before taking this medication.

Correct answer: C

Rationale: The correct answer is C. Erythromycin should be taken on an empty stomach with a full glass of water to increase absorption. Taking it with a full glass of water (Choice A) is incorrect. Avoiding direct sunlight (Choice B) is not related to erythromycin use. Taking an antacid before the medication (Choice D) can interfere with its absorption.

5. How do ACE inhibitors work?

• A. Block the vasoconstrictor and aldosterone effects of angiotensin II at the receptor site
• B. Block stimulation of beta 1 and beta 2 at the receptor sites
• C. Block the conversion of angiotensin I to the vasoconstrictor angiotensin II
• D. None of the above

Correct answer: C

Rationale: ACE inhibitors work by inhibiting the conversion of angiotensin I to angiotensin II. Angiotensin II is a potent vasoconstrictor, and by blocking its production, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload of the heart. Choice A is incorrect because it describes the mechanism of action of angiotensin receptor blockers (ARBs), not ACE inhibitors. Choice B is incorrect as it describes beta-blockers, not ACE inhibitors. Choice D is incorrect as ACE inhibitors do have a specific mechanism of action.

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