ROSC stands for?

• A. Return Of Spontaneous Cardiovascular function
• B. Recovery Of Systemic Circulation
• C. Return Of Spontaneous Circulation
• D. Rapid Onset of Systemic Circulation

Answer: (C)

The main idea here is what ROSC means in resuscitation. ROSC refers to the resumption of a sustained, spontaneous blood flow after cardiac arrest. The standard expansion used in clinical guidelines and literature is Return Of Spontaneous Circulation, which precisely captures that after resuscitation efforts, the heart is beating and circulating blood on its own.

Why this is the best fit: it centers on spontaneous, ongoing circulation as opposed to circulation that is assisted or temporary. The other phrasing tries to describe the result with broader or different emphasis—cardiovascular function in general, systemic circulation, or a rapid onset—none of which match the conventional meaning of ROSC as the return of spontaneous, persisting circulation.