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I never heard of such a thing.

A heart attack is when at least one artery on the heart is completely clogged.

Many people may have a Quadruple Bypass after a heart attack, meaning a 4 artery bypass.

Or I guess aperson could have a heart attack with 4 arteries are all completely clogged at once.

But I never heard of a "Level Four" term.

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15y ago

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