What score is given for extension in response to a painful stimulus?

The score for extension in response to a painful stimulus is given a value of 2. This scoring typically aligns with the Glasgow Coma Scale (GCS), which assesses a patient's level of consciousness. When evaluating motor responses, an extension response — such as decerebrate posturing — indicates a severe level of impairment, and is indicative of a brain injury or dysfunction.

In the context of the GCS, a score of 2 reflects that the individual is demonstrating an unintentional, reflexive response to pain rather than a purposeful attempt to move, which aligns with the severity of their condition. Knowing this helps EMTs and emergency responders quickly gauge the severity of a patient's neurological status in critical situations, allowing for appropriate care and transport decisions.