following mitral valve replacement surgery a client develops pvcs the health care provider orders a bolus of lidocaine followed by a continuous lidoc
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Nursing Elites

NCLEX-RN

NCLEX RN Practice Questions Exam Cram

1. Following mitral valve replacement surgery, a client develops PVCs. The healthcare provider orders a bolus of Lidocaine followed by a continuous Lidocaine infusion at a rate of 2 mg/minute. The IV solution contains 2 grams of Lidocaine in 500 mL of D5W. The infusion pump delivers 60 microdrops/mL. What rate would deliver 4 mg of Lidocaine per minute?

Correct answer: 60 microdrops/minute

Rationale: To calculate the rate needed to deliver 4 mg/minute of Lidocaine, first, convert 2 grams to milligrams: 2 grams = 2000 mg. Then, set up a ratio between the total amount of Lidocaine (2000 mg) and the total volume of IV solution (500 mL): 2000 mg / 500 mL = 4 mg / x mL. Solving for x, x = 1 mL. Since the infusion pump delivers 60 microdrops per mL, multiplying by 60 microdrops/mL gives the correct rate of 60 microdrops/minute. This rate ensures the desired 4 mg of Lidocaine is delivered per minute. Choices B, C, and D are incorrect as they do not align with the accurate calculation based on the provided information.

2. A nurse is caring for a patient after a coronary angiogram. Which of these actions taken by the nursing assistant would most require the nurse's immediate intervention?

Correct answer: The nursing assistant elevates the head of the bed to 60 degrees for a meal

Rationale: After a coronary angiogram, patients need to maintain bed rest and keep the head of the bed at no more than 30 degrees for 3-6 hours, depending on the insertion site. Elevating the head of the bed to 60 degrees for a meal could increase the risk of bleeding or complications at the insertion site. Refilling the ice pack placed on the insertion site is appropriate for managing potential swelling or discomfort. Filling the patient's pitcher with ice-cold drinking water is a standard care task. Placing an extra pillow under the patient's head upon request is a comfort measure and does not pose a risk to the patient's recovery.

3. Based on the information given, which patient would be an appropriate candidate for a closed MRI without contrast?

Correct answer: A 20-year-old woman with unexplained joint pain and a low BMI.

Rationale: The correct answer is the 20-year-old woman with unexplained joint pain and a low BMI. MRI can be used to diagnose musculoskeletal disorders, and this patient has no contraindications to an MRI. Choice B is incorrect because using MRI without contrast may not be ideal for a patient trying to conceive. Choice C is incorrect as the patient’s past open-heart surgery may pose risks for an MRI without contrast. Choice D is incorrect since the patient's hypomanic state does not indicate a need for an MRI without contrast for joint pain.

4. A patient with newly diagnosed lung cancer tells the nurse, 'I don't think I'm going to live to see my next birthday.' Which response by the nurse is best?

Correct answer: Can you tell me what it is that makes you think you will die so soon?

Rationale: The nurse's initial response should be to collect more assessment data about the patient's statement. The answer beginning 'Can you tell me what it is' is the most open-ended question and will offer the best opportunity for obtaining more data. The answer beginning 'Are you afraid' implies that the patient thinks that the cancer will be immediately fatal, although the patient's statement may not be related to the cancer diagnosis. The remaining two answers offer interventions that may be helpful to the patient, but more assessment is needed to determine whether these interventions are appropriate.

5. Which food should the assistive personnel be instructed to remove from the child's food tray based on the prescribed treatment for nephrotic syndrome?

Correct answer: Pickle

Rationale: In nephrotic syndrome, a no-added-salt diet is recommended to manage the condition. High-sodium foods like pickles should be avoided as they can exacerbate fluid retention and swelling. Wheat toast, baked chicken, and steamed vegetables are generally suitable for individuals with nephrotic syndrome as they are low in sodium and protein, which are important considerations for this condition. Therefore, the correct choice is to remove the pickles from the child's food tray.

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