NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. Which of the following can cause coup-contrecoup injuries?
- A. Rotational forces
- B. Deformation forces
- C. Deceleration forces
- D. Acceleration forces
Correct answer: C
Rationale: Deceleration forces occur when the head is moving and abruptly comes to a stop, such as in a car crash. This sudden deceleration can cause the brain to hit against the skull, resulting in coup-contrecoup injuries. In a coup-contrecoup injury, the brain is damaged on opposite sides due to the initial impact and the rebound effect inside the skull. Rotational forces usually result in diffuse axonal injuries rather than coup-contrecoup injuries. Deformation forces can cause focal brain injuries but not coup-contrecoup injuries. Acceleration forces typically lead to diffuse brain injuries, not coup-contrecoup injuries. Therefore, the correct answer is deceleration forces.
2. To prevent a Valsalva maneuver in a client recovering from an acute myocardial infarction, the nurse would:
- A. Assist the client in using the bedside commode.
- B. Administer stool softeners daily as prescribed.
- C. Administer antidysrhythmics prn as ordered.
- D. Maintain the client on strict bed rest.
Correct answer: B
Rationale: Administering stool softeners daily is crucial to prevent straining during defecation, which can lead to the Valsalva maneuver. Straining can increase intrathoracic pressure, decrease venous return to the heart, and reduce cardiac output, potentially worsening the client's condition. If constipation occurs, the use of laxatives may be necessary to avoid straining. Administering antidysrhythmics on an as-needed basis is not indicated for preventing the Valsalva maneuver; they are used to manage dysrhythmias. Strict bed rest is not necessary and may lead to complications such as deconditioning, DVT, and respiratory issues in the absence of specific medical indications.
3. When orally administering alendronate (Fosamax), a bisphosphonate drug, to a largely bed-bound patient being treated for osteoporosis, what is the most important nursing consideration?
- A. Sit the head of the bed up for 30 minutes after administration
- B. Give the patient a small amount of water to drink
- C. Feed the patient soon, at most 10 minutes after administration
- D. Assess the patient for back pain or abdominal pain
Correct answer: A
Rationale: The correct nursing consideration when administering bisphosphonates like alendronate is to sit the head of the bed up for 30 minutes after administration. Bisphosphonates are known to cause esophageal irritation, which can lead to esophagitis. By sitting upright, the patient reduces the time the medication spends in the esophagus, decreasing the risk of irritation and potential adverse effects. Giving the patient water to drink or feeding them immediately after administration can increase the risk of esophageal irritation. Assessing the patient for back pain or abdominal pain is important but not the most critical consideration during drug administration.
4. 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?
- A. Infection.
- B. Poor body image.
- C. Decreased urinary elimination.
- D. Cracking oral mucous membranes.
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.
5. 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?
- A. 60 microdrops/minute
- B. 20 microdrops/minute
- C. 30 microdrops/minute
- D. 40 microdrops/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.
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