Ventricular Fibrillation Symptoms & Diagnosis

Symptoms

Ventricular fibrillation happens without warning. When it occurs, symptoms may include:

• Loss of consciousness within seconds
• Sudden collapse
• Seizures
• Loss of color in the skin
• Dilated pupils
• No detectable pulse, heartbeat, or blood pressure

Diagnosis

Ventricular fibrillation is suspected when a person collapses suddenly and has no detectable pulse or heartbeat. The diagnosis is confirmed by electrocardiography (ECG) . ECG records the heart’s activity by measuring electrical currents through the heart muscle.