Which TIMI grade corresponds to no perfusion?

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Multiple Choice

Which TIMI grade corresponds to no perfusion?

Explanation:
TIMI flow grade assesses epicardial perfusion into the distal myocardial bed after a blockage. The lowest grade means there is no distal perfusion at all—the contrast does not reach the downstream territory. That is no perfusion. The other grades describe increasing levels of flow: a little or no distal perfusion with contrast still entering the area, partial distal perfusion, and finally normal distal perfusion. In practice, higher TIMI flow after reperfusion is associated with better outcomes.

TIMI flow grade assesses epicardial perfusion into the distal myocardial bed after a blockage. The lowest grade means there is no distal perfusion at all—the contrast does not reach the downstream territory. That is no perfusion. The other grades describe increasing levels of flow: a little or no distal perfusion with contrast still entering the area, partial distal perfusion, and finally normal distal perfusion. In practice, higher TIMI flow after reperfusion is associated with better outcomes.

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