Which TIMI score indicates that there is no blood flow?

The TIMI score is a classification system used to assess the degree of blood flow through the coronary arteries during a myocardial infarction and in the context of other acute coronary syndromes. A TIMI score of 0 specifically indicates that there is no blood flow through the coronary artery. This is characterized by the absence of any perfusion beyond the site of occlusion, signifying a total blockage.

In contrast, the other TIMI scores reflect varying degrees of blood flow, where TIMI I indicates minimal flow, TIMI II suggests partial flow with delayed perfusion, and TIMI III denotes complete or normal flow. Understanding this scoring system is crucial for determining the severity of ischemia and guiding treatment decisions in patients presenting with chest pain or acute coronary syndrome. Hence, a TIMI score of 0 is the correct answer as it directly correlates to the absence of blood flow.