Dying
You are unconscious and near death. Creatures at 0 Hit Points that have not stabilized are dying. You can take no actions and lose 1 Resolve Point each round at the end of your turn unless you are stabilized. You can spend RP equal to one-quarter your maximum (minimum 1, maximum 3) to stabilize and can spend 1 RP in a later round to gain 1 Hit Point and stay in the fight. Stabilizing or being healed above 0 Hit Points ends the dying condition, as does death.
Source
Core Rulebook pg. 275