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. The healthcare provider is managing a 20 lbs (9 kg) 6-month-old with a 3-day history of diarrhea, occasional vomiting, and fever. Peripheral intravenous therapy has been initiated, with 5% dextrose in 0.33% normal saline with 20 mEq of potassium per liter infusing at 35 ml/hr. Which finding should be immediately reported to the healthcare provider?
- A. 3 episodes of vomiting in 1 hour.
- B. Periodic crying and irritability.
- C. Vigorous sucking on a pacifier.
- D. No measurable voiding in 4 hours.
Correct answer: D
Rationale: The critical finding that should be reported immediately to the healthcare provider is 'No measurable voiding in 4 hours.' This finding raises concerns about possible hyperkalemia, which can result from continued potassium administration and a decrease in urinary output. Hyperkalemia can lead to serious complications, including cardiac arrhythmias. The management of acute hyperkalemia involves interventions such as administering calcium to protect the heart, shifting potassium into cells, and enhancing potassium elimination from the body. The other choices do not indicate an urgent issue that requires immediate attention. Three episodes of vomiting in 1 hour can be concerning but may not be as immediately critical as the risk of hyperkalemia. Periodic crying and irritability are common in infants and may not indicate a severe complication. Vigorous sucking on a pacifier is a normal behavior in infants and does not signal a medical emergency.
3. Which of these individuals would the nurse suspect as having the greatest risk of contracting Hepatitis B?
- A. A sexually active 45-year-old man who has Type 1 Diabetes
- B. A 75-year-old woman who lives in a crowded nursing home
- C. A child who lives in a country with poor sanitation and hygiene standards
- D. A sexually active 23-year-old man who works in a hospital
Correct answer: D
Rationale: The correct answer is a sexually active 23-year-old man who works in a hospital. This individual is at the highest risk of contracting Hepatitis B due to exposure in a healthcare setting where potential bloodborne pathogens are present. Being sexually active also increases the risk of transmission through sexual contact. Choice A, a 45-year-old man with Type 1 Diabetes, is not directly associated with an increased risk of Hepatitis B. Choice B, a 75-year-old woman living in a crowded nursing home, is at risk for other infections due to the living environment but not specifically for Hepatitis B. Choice C, a child in a country with poor sanitation, is more at risk for water or foodborne illnesses rather than Hepatitis B transmission.
4. The nurse is counting a client's respiratory rate. During a 30-second interval, the nurse counts six respirations, and the client coughs three times. In repeating the count for a second 30-second interval, the nurse counts eight respirations. Which respiratory rate should the nurse document?
- A. 14
- B. 16
- C. 17
- D. 28
Correct answer: B
Rationale: The most accurate respiratory rate is the second count obtained by the nurse, which was not interrupted by coughing. The nurse counted eight respirations over 30 seconds, so doubling this count gives a respiratory rate of 16 breaths per minute. This calculation is based on the assumption that the client's breathing pattern remained relatively stable during the two 30-second intervals. Options A, C, and D are incorrect because they do not reflect the accurate count obtained without interruptions. Choice B (16) is the correct answer as it reflects the uninterrupted count of respirations by the nurse.
5. A nurse and client are discussing the client's progress toward understanding his behavior under stress. This is typical of which phase in the therapeutic relationship?
- A. Pre-interaction
- B. Orientation
- C. Working
- D. Termination
Correct answer: C
Rationale: The correct answer is the working phase. During this phase, the nurse and client actively work together to explore alternative behaviors and techniques. Discussions in this phase focus on understanding the underlying meaning behind the behavior and implementing strategies for change. Pre-interaction (choice A) refers to the phase before the nurse and client first meet and establish a relationship. The orientation phase (choice B) involves introductions, setting goals, and establishing boundaries. Termination (choice D) is the phase where the therapeutic relationship concludes, and closure is achieved.
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