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. What is the primary nursing concern when caring for patients being treated with splints, casts, or traction?

Correct answer: A

Rationale: The primary nursing concern when caring for patients with splints, casts, or traction is to assess for and prevent neurovascular complications or dysfunction. This is crucial to ensure adequate circulation and nerve function, preventing long-term complications such as ischemia or nerve damage. While adequate nutrition and patient education are important aspects of care, they are not the primary concern in this scenario. Acute pain management is important but is secondary to preventing neurovascular complications in patients treated with splints, casts, or traction.

3. A patient is on bedrest 24 hours after a hip fracture. Which regular assessment or intervention is essential for detecting or preventing the complication of Fat Embolism Syndrome?

Correct answer: B

Rationale: In detecting or preventing Fat Embolism Syndrome (FES), assessing the patient's mental status for drowsiness or sleepiness is crucial. Decreased level of consciousness is an early sign of FES due to decreased oxygen levels. Performing passive, light range-of-motion exercises on the hip may not directly relate to FES. Assessing pedal pulse and capillary refill in the toes is essential for assessing circulation but not specific to detecting FES. Administering a stool softener, while important for preventing constipation in immobilized patients, is not directly related to detecting or preventing FES.

4. What should the nurse in the emergency department do first for a new patient who is vomiting blood?

Correct answer: C

Rationale: The nurse's initial action should focus on assessing the patient's hemodynamic status by checking vital signs like blood pressure, heart rate, and respirations. This assessment will help determine the patient's immediate needs and guide further interventions. Drawing blood for coagulation studies and inserting an IV catheter are important steps, but they can follow the initial assessment of vital signs. Placing the patient in the supine position can be risky without first assessing the patient's vital signs, as aspiration is a concern. Therefore, assessing vital signs is the priority to ensure appropriate and timely care for the patient.

5. The nurse has been assigned to care for a neonate just delivered who has gastroschisis. Which concern should the nurse address in the client's plan of care?

Correct answer: A

Rationale: In a neonate with gastroschisis, the bowel herniates through a defect in the abdominal wall without a covering membrane, which puts the neonate at high risk of infection. Immediate surgical repair is necessary due to the vulnerability of the exposed bowel to infection. Therefore, the most critical concern for the nurse to address in the plan of care of a neonate with gastroschisis is preventing infection. Poor body image is not a priority in neonatal care as neonates do not have body image concerns. Decreased urinary elimination is not typically a direct consequence of gastroschisis as it primarily affects the gastrointestinal system, not the genitourinary system. Cracking oral mucous membranes are not relevant to gastroschisis as it involves the lower gastrointestinal system, not the oral cavity.

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