Final answer:
Hypoxia is the key factor affecting a child's prognosis after a near-drowning incident.
Explanation:
The greatest factor that would affect a child's prognosis after surviving a near-drowning episode in a cold pond is hypoxia. Hypoxia, which is a lack of oxygen supply to tissues, can have severe consequences on the body, especially after a traumatic event like near-drowning, affecting brain function and overall recovery.
Hyperthermia, emotional trauma, and aspiration pneumonia are also important considerations in the aftermath of a near-drowning incident, but hypoxia plays a critical role in determining the child's prognosis and recovery.
Understanding the physiological effects of these factors and providing appropriate medical care, such as oxygen therapy to address hypoxia, is essential in improving the child's chances of a positive outcome post near-drowning.
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