What is a contraindication for intraarterial thrombolysis?

Intraarterial thrombolysis is a procedure used to dissolve blood clots in cases such as acute ischemic strokes and certain types of vascular occlusions. One of the important contraindications for this procedure is a history of cerebrovascular accident (CVA) within the last two months. This is crucial because recent CVA can significantly increase the risk of hemorrhagic complications during thrombolysis. The presence of fragile vasculature resulting from a recent stroke can lead to bleeding if thrombolytic agents are administered, which could worsen the patient's condition.

The other choices listed, while potentially associated with various risks, do not present as strong contraindications for intraarterial thrombolysis. For example, the presence of diabetes mellitus and a history of hypertension can contribute to overall vascular health risks, but they do not immediately contraindicate thrombolysis. Similarly, a history of asthma is generally not related to the risks involved in thrombolytic therapy. Hence, the critical nature of recent cerebrovascular accidents makes it a clear contraindication for the procedure.