At 3rd year we keen on  4 activities:

• examine basic vital functions (DRSABC)
• start compressions 
• mask ventilation with 100% O2 

• defibrilation
• (Epinephrin, Amiodaron i.v. )
• (other drugs/interventions, 4H 4T, postresuscitation care is a part of Critical Care at 5th year)

Short version of the text:

Critical skills:

Recognition of heart rythm:

The full text of Guidelines 2015: