Which of the following complications can occur if a clotted cannula is flushed too aggressively?

A. Flushing a clotted cannula too forcefully can dislodge the thrombus and push it into the circulation, potentially causing serious complications such as embolism, stroke, or pulmonary embolism. B. While catheter dislodgment is a risk during handling, it is not specifically caused by flushing a clotted cannula aggressively. C. Speed shock occurs when medications or fluids are administered too rapidly, not due to flushing a clotted cannula. D. Arterial spasms are associated with arterial cannulation or irritation, not with aggressive flushing of a clotted venous cannula.