Final answer:
The client who should be assessed first is the client who had percutaneous transluminal angioplasty (PTA) of the right femoral artery 30 minutes ago.
Step-by-step explanation:
Based on the information provided, the client who should be assessed first is the client who had percutaneous transluminal angioplasty (PTA) of the right femoral artery 30 minutes ago (option A). This is because PTA is an invasive procedure that carries the risk of complications such as bleeding, hematoma, or reperfusion injury. It is important to closely monitor this client for any signs of complications, such as bleeding or decreased perfusion to the extremity.