Which method is used to monitor cardiovascular perfusion after ROSC?

• A. Intra-arterial blood pressure monitoring
• B. Noninvasive cuff BP
• C. Echocardiography
• D. Central venous pressure monitoring

Answer: (A)

After ROSC, you need continuous, real-time data on how well the body is being perfused, so you can titrate therapies quickly. An arterial line provides beat-to-beat blood pressure readings, giving a precise and continuous picture of perfusion pressure and hemodynamic status. It also allows frequent arterial blood gas sampling to guide oxygenation and acid-base management, which are critical in the post-arrest period.

Noninvasive cuff BP, by contrast, only gives intermittent readings and can be unreliable when patients are on vasopressors, moving, or have limb edema—so it may miss sudden drops or swings in perfusion. Echocardiography offers valuable information about cardiac function and hemodynamics, but it isn’t continuous monitoring; it’s a snapshot that complements arterial pressures. Central venous pressure monitoring reflects venous preload but doesn’t directly measure arterial perfusion, so it’s less informative for tracking systemic perfusion status.

Thus, the best method to monitor cardiovascular perfusion after ROSC is intra-arterial blood pressure monitoring.