SUMMARY: Back from the vet and fine. Strong as an ox.
Vet said that, with just the sedative earlier, they had 3 people trying for 45 minutes to get her to hold still enough to flush the glands. With anaesthesia, it took about 10 minutes to do what they needed to do. He said, "You should buy her a harness and tow rope; she's so strong (especially with the rush of adrenaline) that if your car broke down, she could tow it for you!" That's a 43-lb agility dog for ya.
Now another 10 days of antibiotics and a recheck in 2 weeks. Jeez, that was an expensive vet visit.