Nursing Elites

1. A nurse is planning to administer chlorothiazide 20 mg/kg/day PO divided equally and administered twice daily for a toddler who weighs 28.6 lb. How many mL should the nurse administer per dose? (Round to the nearest tenth)

• A. 2.6 mL
• B. 2.2 mL
• C. 3.5 mL
• D. 5.0 mL

Correct answer: A

Rationale: The correct calculation is as follows: The toddler's weight in kg is 13 kg (28.6 lb / 2.2 lb/kg). The total daily dose is 260 mg (20 mg x 13 kg). Therefore, the dose per administration is 130 mg (260 mg / 2). Given the concentration of 250 mg/5 mL, the dose in mL is 2.6 mL (130 mg / (250 mg/5 mL)). Therefore, the nurse should administer 2.6 mL per dose. Choice B, 2.2 mL, is incorrect as it does not reflect the correct calculation. Choices C and D, 3.5 mL and 5.0 mL, are also incorrect and do not align with the accurate dosage calculation based on the given scenario.

2. A nurse is assessing a client who has pericarditis. Which of the following findings is the priority?

• A. Paradoxical pulse
• B. Dependent edema
• C. Pericardial friction rub
• D. Substernal chest pain

Correct answer: A

Rationale: The correct answer is A: Paradoxical pulse. Paradoxical pulse, which is a significant drop in systolic blood pressure during inspiration, indicates cardiac tamponade, a life-threatening complication of pericarditis. This finding requires immediate attention as it suggests potential compromised cardiac function. Choices B, C, and D are associated with pericarditis but do not indicate the same level of urgency as paradoxical pulse.

3. A nurse is caring for a client who has congestive heart failure and is taking digoxin. The client reports nausea and refuses to eat breakfast. Which of the following actions should the nurse take first?

• A. Encourage the client to eat the toast on the breakfast tray
• B. Administer an antiemetic
• C. Inform the client's provider
• D. Check the client's apical pulse

Correct answer: D

Rationale: The correct answer is to check the client's apical pulse first. Nausea can be a sign of digoxin toxicity, and assessing the client's heart rate is crucial in this situation. Administering an antiemetic or encouraging the client to eat should come after ensuring the client's safety. While informing the provider is important, the immediate concern is to assess for potential digoxin toxicity by checking the client's apical pulse.

4. A nurse is obtaining the medical history of a client who has a new prescription for isosorbide mononitrate. Which of the following should the nurse identify as a contraindication to this medication?

• A. Glaucoma
• B. Hypertension
• C. Polycythemia
• D. Migraine headaches

Correct answer: A

Rationale: Isosorbide mononitrate is contraindicated in clients with glaucoma due to its potential to increase intraocular pressure, which can exacerbate the condition. Hypertension, polycythemia, and migraine headaches are not contraindications for isosorbide mononitrate. In fact, isosorbide mononitrate is commonly used in the management of hypertension and certain types of angina.

5. A nurse is preparing to administer a measles, mumps, rubella (MMR) immunization to a child. Which is a contraindication for this vaccine?

• A. Recent blood transfusion
• B. Allergy to penicillin
• C. Minor acute illness
• D. Low-grade fever

Correct answer: A

Rationale: The correct answer is A: Recent blood transfusion. A recent blood transfusion can interfere with the effectiveness of the MMR vaccine, making it a contraindication. Choice B, allergy to penicillin, is not a contraindication for the MMR vaccine. Choice C, minor acute illness, is not a contraindication unless the child has a moderate to severe illness. Choice D, low-grade fever, is not a contraindication as long as the child does not have a moderate to severe febrile illness.

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