NCLEX 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: 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.
2. A female client with frequent urinary tract infections (UTIs) asks the nurse to explain her friend's advice about drinking a glass of juice daily to prevent future UTIs. Which response is best for the nurse to provide?
- A. Orange juice has vitamin C that deters bacterial growth.
- B. Apple juice is the most useful in acidifying the urine.
- C. Cranberry juice stops pathogens' adherence to the bladder.
- D. Grapefruit juice increases absorption of most antibiotics.
Correct answer: Cranberry juice stops pathogens' adherence to the bladder.
Rationale: The correct answer is 'Cranberry juice stops pathogens' adherence to the bladder.' Cranberry juice maintains urinary tract health by reducing the adherence of Escherichia coli bacteria to cells within the bladder. This helps prevent UTIs. Options A, B, and D are incorrect because orange juice with vitamin C, apple juice for urine acidification, and grapefruit juice for antibiotic absorption do not have the same proven effectiveness in preventing UTIs as cranberry juice does.
3. Which of the following diseases is caused by the Bordetella pertussis bacterium?
- A. German Measles
- B. RSV
- C. Meningitis
- D. Whooping Cough
Correct answer: Whooping Cough
Rationale: Bordetella pertussis is the bacterium responsible for causing Whooping Cough, also known as pertussis. Meningitis can be caused by various bacteria, but not specifically by Bordetella pertussis. German Measles, also known as Rubella, and RSV (Respiratory Syncytial Virus) are viral infections and are not caused by the Bordetella pertussis bacterium. Therefore, the correct answer is Whooping Cough, caused by Bordetella pertussis.
4. A client is about to have a TENS unit attached for pain relief. Which of the following actions is most appropriate in this situation?
- A. Inform the client that he may experience tingling sensations.
- B. Connect the TENS unit before the client goes to bed for the night.
- C. Inform the client that the TENS unit may have pain-reducing effects for 10 to 15 days.
- D. After treatment, inform the client that he may not use a TENS unit again for at least 2 weeks.
Correct answer: Inform the client that he may experience tingling sensations.
Rationale: When attaching a TENS unit for pain relief, it is essential to inform the client that he may experience tingling sensations. This is a common sensation experienced when using a TENS unit, but it should not cause muscle twitching. The therapeutic effects of a TENS unit usually last between 3 to 5 days. Choice B is incorrect because there is no specific recommendation to connect the TENS unit before bedtime. Choice C is incorrect as stating that the TENS unit may have pain-reducing effects for 10 to 15 days is inaccurate, as the effects typically last 3 to 5 days. Choice D is incorrect because there is no guideline suggesting that the client cannot use a TENS unit again for at least 2 weeks after treatment.
5. A nurse is caring for a 2-day-old infant who has a bilirubin level of 19 mg/dl. The physician has ordered phototherapy. Which of the following actions indicates correct preparation of the infant for this procedure?
- A. Undress the baby down to a diaper and hat
- B. Place the baby in his mother's arms before turning on the light
- C. Position the phototherapy light approximately 3 inches above the baby's skin
- D. Secure eye protection for the infant without occluding the nose
Correct answer: Secure eye protection for the infant without occluding the nose
Rationale: Phototherapy is used to treat high levels of bilirubin among infants, typically evidenced as jaundice. The nurse must position the infant carefully during this procedure to maximize the benefits of the light therapy while protecting the baby. Placing protective eyewear over the baby's eyes without covering the nose is crucial to shield the eyes from the ultraviolet light. Undressing the baby down to a diaper and hat (Choice A) is a standard practice to maximize skin exposure to the phototherapy light. Placing the baby in his mother's arms before turning on the light (Choice B) is not necessary for the preparation of the infant for phototherapy. Positioning the phototherapy light approximately 3 inches above the baby's skin (Choice C) is incorrect as the distance should be as recommended by the healthcare provider based on the manufacturer's instructions.
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