In pediatric rhabdomyosarcoma, stages are dependent on primary site whether favorable or unfavorable. Which of the following sites of involvement is considered unfavorable?

Correct Answer: D

Rationale: Paranasal sinuses are considered unfavorable sites in rhabdomyosarcoma staging.

Correct Answer: B

Rationale: At around 2 months of age, infants typically start to show signs of recognizing familiar faces and objects, such as a feeding bottle. At this stage, their vision and cognitive abilities have developed enough for them to begin differentiating and responding to familiar stimuli in their environment. This recognition is an important developmental milestone in an infant's early cognitive and social development.

Correct Answer: B

Rationale: Hepatitis C is a known risk factor for splenic lymphoma and other B-cell lymphoproliferative disorders.

Correct Answer: D

Rationale: Heavy meals close to bedtime disrupt sleep.

Correct Answer: D

Rationale: Bacterial meningitis can lead to cerebral edema by causing an inflammatory response within the brain tissue. This inflammation can result in the buildup of fluid, leading to edema. Additionally, the inflammatory response can cause an increase in permeability of the blood-brain barrier, allowing substances that are not normally able to cross the barrier to do so. This can lead to further disruption in the balance of fluid within the brain. Finally, the inflammatory response and the buildup of fluid can also result in raised intracranial pressure, which can further exacerbate the physiological changes occurring in the brain. Therefore, all of the above changes - cerebral edema, increased permeability of the blood-brain barrier, and raised intracranial pressure - can be seen in cases of bacterial meningitis.