If a newborn has red spots and vomiting, what could be the cause and how to treat it.

High blood counts in children can be caused by various reasons, including infections, trauma, and blood diseases. It is necessary to seek medical attention promptly and cooperate with treatment.

Cross-matching tests are required before O-type blood transfusions to ensure safety. For infants at risk of neonatal hemolytic disease, timely medical attention and proper medication use are essential.