NCLEX NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. Which of these devices is considered a protective device, rather than a restraint?
- A. A mitten on the hands to prevent scratching
- B. A mitten on the hands to prevent the person from pulling their IV out
- C. A side rail to prevent the patient from falling
- D. A soft wrist restraint to prevent the patient from pulling their IV tubing
Correct answer: A mitten on the hands to prevent scratching
Rationale: A mitten on the hands to prevent scratching is considered a protective device because its primary purpose is to protect the patient from harming themselves by scratching. It does not restrict the patient's movement. Choice B, a mitten on the hands to prevent the person from pulling their IV out, is considered a restraint as it limits the patient's movement. Choice C, a side rail to prevent the patient from falling, is also a protective device as it aims to keep the patient safe by providing support and preventing falls. Choice D, a soft wrist restraint to prevent the patient from pulling their IV tubing, is a type of restraint as it restricts the patient's movement to prevent them from interfering with medical equipment.
2. 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: The dose is too low
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.
3. What drives respiration in a patient with advanced chronic respiratory failure?
- A. Hypoxemia
- B. Hypocapnia
- C. Hypercapnia
- D. None of the above
Correct answer: Hypoxemia
Rationale: In patients with advanced chronic respiratory failure, such as those with chronic obstructive pulmonary disease (COPD), the respiratory drive shifts from being primarily stimulated by high levels of carbon dioxide (hypercapnia) to being driven by low oxygen levels (hypoxemia). This shift is due to the body's adaptation to chronic respiratory acidosis and hypoxemia. As a result, hypoxemia becomes the primary stimulus for respiration in these patients. Hypocapnia, a low level of carbon dioxide, is not a common driver of respiration in patients with advanced chronic respiratory failure. Therefore, the correct answer is hypoxemia.
4. When measuring the vital signs of a 6-month-old infant, which action by the nurse is correct?
- A. Respirations are measured first, followed by pulse and temperature.
- B. Vital signs should be measured as frequently as in an adult.
- C. Procedures are explained to the parent, and the infant is encouraged to handle the equipment.
- D. The nurse should first measure the infant’s vital signs before performing a physical examination.
Correct answer: Respirations are measured first, followed by pulse and temperature.
Rationale: When assessing vital signs in a 6-month-old infant, the correct order is to measure respirations first, followed by pulse and temperature. This sequence is important to avoid potential alterations in respiratory and pulse rates caused by factors like crying or discomfort. Measuring the temperature first, especially rectally, may lead to an increase in respiratory and pulse rates, which can skew the results. It is crucial to follow this specific order to obtain accurate baseline values. Therefore, option A is the correct choice. Option B is incorrect as the frequency of measuring vital signs in infants differs based on individual needs rather than being consistently more frequent than in adults. Option C is not directly related to the correct sequence for measuring vital signs in infants. Option D is incorrect because the physical examination typically follows the assessment of vital signs in clinical practice.
5. Which of the following may represent an upper airway obstruction?
- A. Retractions
- B. Elongated expiratory phase
- C. Stridor
- D. Expiratory wheezing
Correct answer: Stridor
Rationale: Stridor is the sound produced by turbulent airflow through a partially obstructed upper airway. It is a classic sign of upper airway obstruction. While an elongated expiratory phase may indicate lower airway obstruction, stridor specifically points to an upper airway issue. Retractions are also often seen in upper airway obstruction due to the increased effort of breathing. Expiratory wheezing, on the other hand, is more indicative of lower airway conditions such as asthma or chronic obstructive pulmonary disease (COPD).
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