TOPIC: Turnarounds & Key to the Highway

We talked about turnarounds, they are a passage at the end of a section that leads into the next section, the new beginning. Our turnaround started in an A note, there is sequence of notes (?) which ended in another A note in a different position, and then final ending in the V note. (Can someone help with proper progression, when turnaround starts and sequence )
We continued to work on the 8 bar blues “Key to the Highway”. Keep practicing the lead guitar.
8 bar blues I, V, I, IV,
I, V, I IV, I V.