For ages 6-7 maybe hard for 2-5 years because of their body
Cytotechnology is the microscopic study of body cells to detect cancer, viral and bacterial infections, and other abnormal conditions. Cytotechnology techniques can identify precancerous or cancerous cells.
The main cause of petechiae in cases of traumatic asphyxia or Perte's syndrome comes from a severe compression injury causing an immediate compression of the thorax. It can be prevented by an immediate restoration of ventilation and decompression of the thorax through fluid replacement.