Update:
Just got an update from Jen. She got so dehydrated that her secretions dried up in her lungs.
She had a huge mucus plug lodged in her lungs and this is why her O2 sats were so low and her heart rate was so high.
This was a BIG deal for Jen to call in sick from work and take care of herself. I want to say how much I admire her for doing this - she is so wise and strong!