Don't know why that picture says call 999 if they are not breathing normally, 999 should always be called if someone is unconscious regardless of whether they breathing normally or not...
Because it is about when you call 999, in an unconscious, normally breathing person then you call 999 after they are in the recovery position (and then their airway is protected).
DR ABC
No more circulation, in DRABC C can now mean compressions.
From hereResus Council said:Guidelines 2000 introduced the concept of checking for ‘signs of a circulation’. This change [i.e. removing the pulse check] was made because of the evidence that relying on a check of the carotid pulse to diagnose cardiac arrest is unreliable and time-consuming, mainly, but not exclusively, when attempted by non-healthcare professionals.