When performing a neurological examination on Mr. RR, which of the following would not be considered an important or useful part of the examination?

Correct Answer: D

Rationale: When performing a neurological examination on Mr. RR, pupil size due to neurologic medications would not typically be considered an important or useful part of the examination. While assessing pupil size and reactivity can provide valuable information about brain function and potential neurological issues, the focus of the initial examination would generally be on assessing eye movements, reflexes, and signs of nuchal rigidity. Pupil size related to medications would be more relevant in a medication review or history-taking rather than in the initial neurological examination.

Correct Answer: B

Rationale: Acute hyponatremia causes rapid water influx into brain cells, leading to cerebral edema, which can result in seizures and altered mental status.

Correct Answer: D

Rationale: Even after spinal anesthesia, premature infants are at risk for apnea and require monitoring, making outpatient discharge unsafe.

Correct Answer: B

Rationale: The best indicator for extubation readiness is a low FiO2 (fraction of inspired oxygen) because it indicates the infant is maintaining adequate oxygenation with minimal support.

Correct Answer: B

Rationale: Teething usually begins at 6 months of age with the eruption of the lower central incisors in infants.