Correct Answer: D

Rationale: Given the mechanism of injury and the distance the child was thrown, a primary pelvic injury should be suspected due to the high impact and force. The pelvis is a common site for significant injury in such cases, and the distance the child was thrown indicates a high-energy impact that could lead to pelvic fractures or injuries.

Correct Answer: C

Rationale: A prolapsed umbilical cord is dangerous because the baby's head may compress the cord, cutting off its supply of oxygen. This compression can lead to oxygen deprivation, potentially causing significant harm to the baby. Immediate medical intervention is crucial in such cases to prevent adverse outcomes.

Correct Answer: D

Rationale: In cases where child abuse is suspected, the priority is the safety and well-being of the child. Advising the parents that the child needs to be transported for further evaluation and care is the appropriate initial step. This ensures that the child receives necessary medical attention while also addressing the suspicion of abuse through proper channels. It is essential to involve appropriate authorities and follow established procedures to protect the child and investigate any potential abuse further.

Correct Answer: C

Rationale: Nausea and vomiting are more common in children than adults following an isolated head injury. Children often present with gastrointestinal symptoms like nausea and vomiting after a head injury due to differences in physiological responses compared to adults.

Correct Answer: D

Rationale: Systolic blood pressure is the least reliable parameter when assessing perfusion status in a 2-year-old child. In young children, blood pressure measurements can be variable, affected by factors like anxiety or crying. Capillary refill time, presence of peripheral pulses, and skin color and temperature are more reliable indicators of perfusion status in this age group.