What is one of the main signs in the Obvious Death Criteria?

The presence of absence of respiration is one of the main signs in the Obvious Death Criteria because it indicates that the individual is no longer capable of sustaining life. Specifically, a person who has ceased to breathe is typically no longer viable, and this absence is a key marker that medical professionals look for when assessing for death.

In the context of such criteria, the absence of respiration, combined with other signs, helps to determine that resuscitation efforts are futile, thereby allowing for the proper handling of the situation according to established medical protocols. This understanding is vital for appropriately responding to cases where life signs are unclear or absent, ensuring that actions taken align with legal and ethical guidelines.