Diastolic Intra-Arterial Pressure Is Not a Reliable Indicator of Effective CPR

A diastolic intra-arterial pressure of 20 mm Hg alone does not indicate effective CPR. Return of spontaneous circulation (ROSC) is confirmed by:

• Palpable pulses (e.g., carotid)
• Spontaneous breathing
• Purposeful movement

Diastolic pressure may be present without adequate organ perfusion. Clinical signs of life are the gold standard for CPR effectiveness.