What type of ventricular fibrillation is not dangerous or life-threatening?

None: Vf is a life threatening emergency which requires immediate cardioversion.

Lab Research: The only "safe" ventricular fibrillation is the kind i create in the research lab where the heart's already in a petri dish. That said, we do test implanted defibrillators sometimes by starting vfib and letting the device detect and convert it back to normal rhythm. If the device fails, though, we'll shock the patient externally immediately after - vfib is never safe for more than a few sec.

Ventricular fib: V-fib is not compatible with life. It is a medical emergency. Atrial fibrillation can be be tolerated for years, but it is a cause of strokes and if you have heart failure, a. Fib. Can make worse.