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 client is scheduled for an Intravenous Pyelogram (IVP). In order to prepare the client for this test, the nurse would:

Correct answer: C

Rationale: Administering a laxative to the client the evening before the examination is the correct action. Bowel prep is crucial for an Intravenous Pyelogram (IVP) as it helps in achieving better visualization of the bladder and ureters. Instructing the client to maintain a regular diet the day prior to the examination (Choice A) is not the appropriate preparation for an IVP. Restricting the client's fluid intake 4 hours prior to the examination (Choice B) is not necessary for this test. Informing the client that only 1 x-ray of his abdomen is necessary (Choice D) is not relevant to the preparation process for an IVP.

3. For a 6-year-old child hospitalized with moderate edema and mild hypertension associated with acute glomerulonephritis (AGN), which one of the following nursing interventions would be appropriate?

Correct answer: A

Rationale: Institute seizure precautions. The severity of the acute phase of AGN is variable and unpredictable; therefore, a child with edema, hypertension, and gross hematuria may be subject to complications, and anticipatory preparation such as seizure precautions is needed. Weighing the child twice per shift may be necessary for monitoring fluid balance but is not specifically related to the complications of AGN. Encouraging the child to eat protein-rich foods is important for overall nutrition but does not directly address the potential complications of AGN. Relieving boredom through physical activity is beneficial for overall well-being but is not the priority in this situation where seizure precautions are essential.

4. Which action should the nurse take to evaluate treatment effectiveness for a patient who has hepatic encephalopathy?

Correct answer: B

Rationale: To evaluate treatment effectiveness for a patient with hepatic encephalopathy, requesting the patient to walk with eyes closed is crucial. This test assesses the patient's balance, gait, and coordination, which can be impaired in hepatic encephalopathy due to altered mental status and brain function. Walking with eyes closed challenges the patient's sensory input and proprioception, providing valuable information on improvement or deterioration in neurological function. Asking the patient to extend both arms forward is used to check for asterixis, a sign often seen in hepatic encephalopathy, but it is not specific for evaluating treatment effectiveness. Performing the Valsalva maneuver is unrelated to assessing hepatic encephalopathy and is more commonly used in cardiac evaluations. Observing the patient's breathing pattern may be important in other conditions but is not directly relevant to evaluating treatment effectiveness for hepatic encephalopathy.

5. A patient with stage I nonsmall cell lung cancer expresses a preference for chemotherapy over surgery. Which response by the nurse is most appropriate?

Correct answer: D

Rationale: The most appropriate response by the nurse in this situation is to gather more information about the patient's concerns and preferences. By asking the patient to share their understanding of the available treatments, the nurse encourages open communication and gains insight into the patient's knowledge and preferences. Option A focuses solely on pain, which may not be the patient's primary concern. Option B assumes negative experiences without exploring the patient's current thoughts. Option C, stating that surgery is the recommended treatment, dismisses the patient's preference and does not address their concerns. Chemotherapy is not the primary treatment for nonsmall cell lung cancer; it may be used for nonresectable tumors or as adjuvant therapy to surgery, making it crucial for the nurse to explore the patient's treatment preferences and understanding.

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