The doctors determined my dad did need a stent. They performed the procedure this afternoon and all is well. They decided to keep him overnight so they could run a few more tests tomorrow, in order to determine why he's keeps having these small strokes. The speculation is that he has a small hole in his heart, which they believe can be fixed.
It feels like good news. It's just still scary. Thanks to all of you who prayed.
And just for fun, a classic video for you all to enjoy.