The Apgar score is calculated based on 5 medical criteria:
-Appearance – skin color
-Pulse – heart rate (taken with a stethoscope or by feeling the umbilical cord)
-Grimace – reflex response
-Activity – muscle tone
-Respiration – breathing quality
Each one of the criteria is evaluated on a 0 to 2 scale, once every criteria are measured, the values are added up and the child would have an Apgar score between 0 and 10.