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: A

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 clinic nurse interviews a parent who is suspected of abusing her child. Which of the following characteristics is the nurse least likely to find in an abusing parent?

Correct answer: C

Rationale: The profile of a parent at risk of abusive behavior includes a tendency to blame the child or others for the injury sustained. Abusers typically blame others, especially their partners, for the mistakes in their lives. This is related to hypersensitivity, but they are not necessarily alike. This occurs because most abusive people don't hold themselves as being accountable for the actions they commit. Instead, they'll try to shift the blame to the person that they have abused and somehow say they "deserved it"? or that they were forced into a corner.

3. Which patient poses the least infection risk to an immunosuppressed patient who had a liver transplant?

Correct answer: C

Rationale: The patient with a healing leg wound poses the least infection risk to an immunosuppressed patient who had a liver transplant. Chronic pancreatitis can lead to complications such as infections that can pose a risk to immunosuppressed individuals. Patients infected with respiratory viruses or urinary tract infections are actively infectious, which can put immunosuppressed patients at a higher risk of acquiring infections. Therefore, the patient with a healing leg wound is the least likely to pose an immediate infection risk.

4. A child is hospitalized because of persistent vomiting. The nurse should monitor the child closely for which problem?

Correct answer: C

Rationale: In the scenario of persistent vomiting, the child is at risk of developing metabolic alkalosis due to the loss of hydrochloric acid. Vomiting leads to the loss of gastric acid, resulting in an imbalance that causes metabolic alkalosis. Metabolic acidosis is incorrect as it would occur in a child with diarrhea due to the loss of bicarbonate. While diarrhea can sometimes be associated with vomiting, in this case, the primary focus is on the effects of vomiting. Hyperactive bowel sounds are not typically associated with vomiting, making this choice less relevant to the situation described.

5. Which client is at highest risk for developing a pressure ulcer?

Correct answer: C

Rationale: Risk factors for pressure ulcers include: immobility, absence of sensation, decreased LOC, poor nutrition and hydration, skin moisture, incontinence, increased age, decreased immune response. This client has the greatest number of risk factors.

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