Good for her. That's a very easy climb technically -- no gear or climbing skills at all required. But the air still gets really thin up there.
Curious as to whether being an amputee might actually have helped her oxygen/wise. The actual climbing/walking would have been much more difficult, but she may have had a lower chance of getting altitude sickness. I made it up to 18,500, sat down for a second, and then got the altitude issue. Some big dude had to carry me down to the third hut at 15,500.
How humiliating.