Thrombolytic therapy is successful in about what percentage of infarcted arteries?

Thrombolytic therapy is a medical treatment used to dissolve blood clots that can block arteries and lead to conditions such as heart attacks. The success rate of thrombolytic therapy in reopening infarcted, or blocked, arteries is a critical aspect of its effectiveness.

The correct percentage of success in treating infarcted arteries with thrombolytic therapy is actually around 75%, which aligns with option D. This high success rate is due to several factors, including the timing of the treatment, the method by which it is administered, and the specific characteristics of the clot being treated.

It’s important to understand that while thrombolytic therapy can be highly effective, not every case results in successful recanalization of the artery. Factors such as the duration of the occlusion, the extent of myocardial damage, and the presence of collateral circulation can significantly influence outcomes.

The answer recorded as B (20%) does not reflect the typical success rate for thrombolytic therapy in clinical practice and underestimates the effective outcomes of this critical intervention in the treatment of myocardial infarctions.