I hope she is okay. My oldest DD levels in the 80s one time when she had pneumonia. They were very close to putting a tube in to help her breath. Even with 100% O2, her levels were that low. They ended up coming in and massaging her back to get her to cough and suctioned a lot of gross stuff. After that, with the O2 her levels were high 90s. She was 4 when it happened so a long time ago, and she ended up being in the hospital for 6 days. I hope your friend recovers quickly.