NCLEX-RN
NCLEX RN Practice Questions Quizlet
1. A child weighing 30 kg arrives at the clinic with diffuse itching as the result of an allergic reaction to an insect bite. Diphenhydramine (Benadryl) 25 mg 3 times a day is prescribed. The correct pediatric dose is 5 mg/kg/day. Which of the following best describes the prescribed drug dose?
- A. It is the correct dose
- B. The dose is too low
- C. The dose is too high
- D. The dose should be increased or decreased, depending on the symptoms
Correct answer: B
Rationale: The correct pediatric dose of diphenhydramine is 5 mg/kg/day. This child weighs 30 kg, so the calculated dose would be 5 mg/kg x 30 kg = 150 mg/day. Since the prescription is for 25 mg 3 times a day, the total daily dose is 25 mg x 3 = 75 mg/day, which is lower than the calculated dose of 150 mg/day. Therefore, the prescribed dose of 25 mg 3 times a day is too low for this child. The dose should be adjusted to meet the correct dosage of 150 mg/day, which would be 50 mg 3 times a day. It is important not to titrate the dosage based on symptoms without consulting a physician, as this can lead to inappropriate medication administration.
2. Which of the following measures would be appropriate for a nurse to teach the parent of a nine-month-old infant about diaper dermatitis?
- A. Use only cloth diapers that are rinsed in bleach
- B. Do not use occlusive ointments on the rash
- C. Use commercial baby wipes with each diaper change
- D. Discontinue a new food that was added to the infant's diet just prior to the rash
Correct answer: D
Rationale: Diaper dermatitis can be caused by various factors, one of which includes introducing new foods to the infant's diet. Discontinuing the new food that was added just before the rash can help identify and eliminate the potential cause. Options A and C are not directly related to addressing the cause of diaper dermatitis. While using cloth diapers rinsed in bleach may be a preventive measure for diaper dermatitis, it is not addressing a specific cause. Option B, advising against using occlusive ointments on the rash, may actually be beneficial in managing diaper dermatitis, but it does not address the cause of the condition.
3. A healthcare professional is reviewing a patient's chart and notices that the patient suffers from conjunctivitis. Which of the following microorganisms is related to this condition?
- A. Yersinia pestis
- B. Helicobacter pylori
- C. Vibrio cholerae
- D. Haemophilus aegyptius
Correct answer: D
Rationale: The correct answer is Haemophilus aegyptius. Haemophilus influenzae biogroup aegyptius (Hae) is a causative agent of acute and often purulent conjunctivitis, more commonly known as pink eye. Yersinia pestis, Helicobacter pylori, and Vibrio cholerae are not associated with conjunctivitis. Yersinia pestis causes the plague, Helicobacter pylori is associated with gastric ulcers, and Vibrio cholerae causes cholera.
4. A nurse is caring for a 2-year-old child after corrective surgery for Tetralogy of Fallot. The mother reports that the child has suddenly begun seizing. The nurse recognizes this problem is probably due to
- A. A cerebral vascular accident
- B. Postoperative meningitis
- C. Medication reaction
- D. Metabolic alkalosis
Correct answer: A
Rationale: The correct answer is a cerebral vascular accident. Polycythemia occurs as a physiological reaction to chronic hypoxemia, which commonly occurs in clients with Tetralogy of Fallot. Polycythemia and the resultant increased viscosity of the blood increase the risk of thromboembolic events, including cerebrovascular accidents. Signs and symptoms of a cerebral vascular accident include sudden paralysis, altered speech, extreme irritability or fatigue, and seizures. Postoperative meningitis (choice B) is less likely in this scenario as the sudden onset of seizing is more indicative of a vascular event rather than an infection. Medication reaction (choice C) is not the most probable cause given the history provided. Metabolic alkalosis (choice D) is not associated with sudden seizing in this context.
5. A patient is suspected to have sustained a spinal cord injury. What best describes the overarching principles used to guide the care for this type of condition?
- A. Immobilize the cervical area to prevent further injury
- B. Monitor the patient's level of consciousness to prevent neurologic deterioration
- C. Help the patient with activities of daily living and provide emotional and physical support to help them adjust to their injury
- D. Facilitate tissue perfusion to the spinal cord while maintaining airway and breathing
Correct answer: D
Rationale: The correct answer is to facilitate tissue perfusion to the spinal cord while maintaining airway and breathing. In the acute phase of a spinal cord injury, ensuring proper tissue perfusion to the spinal cord is crucial to prevent further damage. Maintaining airway, breathing, and circulation is essential in guiding the overall care for a patient with a spinal cord injury. Choices A, B, and C, while important in certain aspects of care, are not the overarching principles that guide the immediate management of a suspected spinal cord injury.
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