Nokea
You are evaluating a 6-year-old male child with Langerhans cell histiocytosis (LCH); the parents state that the most common site of bone involvement is
- A. skull
- B. vertebra
- C. mandible
- D. pelvis
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
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Coadministration of botulinum toxin (BTX) and one of the following drugs should be performed with caution as the effect of the toxin may be potentiated
- A. aminoglycosides
- B. cephalosporines
- C. penicillins
- D. macrolids
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
What is the corrected age of a child born at 30 weeks gestation on May 2, 2014, who is being tested on August 5, 2014?
- A. 3 months
- B. 2 weeks
- C. 2.6 months
- D. 4 weeks
Correct Answer: B
Rationale: To calculate the corrected age of a premature child, you need to adjust for the weeks of prematurity. In this case, the child was born at 30 weeks gestation. From May 2, 2014, to August 5, 2014, is a span of 14 weeks. Subtracting the 30 weeks of gestation from the total time passed (14 weeks) gives the corrected age, which is 14 - 30 = -16 weeks. Since negative weeks are not relevant here, the corrected age is 0 weeks, which is equivalent to 2 weeks.
A 6-year-old male child presented with a cerebellar mass; after undergoing complete surgical resection of the mass, the histology of the mass reveals pilocytic astrocytoma. Of the following, the MOST appropriate next step in the management is
- A. radiotherapy
- B. chemotherapy
- C. observation
- D. concomitant chemo-radiotherapy
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
When the home health nurse visits the home of a 10-month-old child, she observes the environment for risks of injury to the child. Which observation will the nurse discuss with the mother?
- A. The mother leaves the filled mop bucket on the floor while in another room.
- B. The mother turns all pan handles to the back of the stove.
- C. The mother fills the bathtub before bringing the baby into the bathroom.
- D. When riding in a car, the child is in a car seat in the middle of the back seat.
Correct Answer: A
Rationale: The correct answer is A because leaving a filled mop bucket on the floor poses a drowning hazard for a 10-month-old child. Water in the bucket can be a potential drowning risk if the child falls into it. Pan handles turned to the back of the stove prevent accidental spills or burns. Filling the bathtub before bringing the baby into the bathroom helps in preventing burns from hot water. Placing the child in a car seat in the middle of the back seat provides safety by minimizing the risk of injury during a car ride.
The most commonly used reference range is generally given as the mean of the reference population ±2 standard deviations. The term 'normal distribution' refers to which of the following?
- A. gaussian distribution
- B. exponential distribution
- C. skewed distribution
- D. uniform distribution
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.