What does Katniss realize right before she passes out in Chapter 14?

What does Katniss realize right before she passes out in Chapter 14? Katniss realizes that the nest is her only hope of escape, so she climbs up to the branch from which it hangs and begins sawing the branch free, the blisters on her hands bursting from the friction of the knife. She saws until the anthem ends so that the Careers and Peeta below her won’t know what she’s up to.

Katniss realizes that the nest is her only hope of escape, so she climbs up to the branch from which it hangs and begins sawing the branch free, the blisters on her hands bursting from the friction of the knife. She saws until the anthem ends so that the Careers and Peeta below her won’t know what she’s up to.