What the fuck indeed

Her name is Cassie Slane. Seems like so far QVC have not released any statements.

Jesus, can't he see she needs help right away, get those pants off, she needs to breath.

THE PROFIT MUST GO ON!

My guess is she either had a TIA or stroke. It could have been cardiac, but she doesn't appear to be in any discomfort up until the moment it happened. This definitely looked more neurological. Could be the vagus nerve too, that'll cause you to take a header into the ground. Hope she's ok.

Edit: Guess this has happened to her before on QVC. I hope she finds a good neurologist cause she's certainly having issues.

Looks like neurological but I'd wager epilepsy, actually.

I heard low blood sugar.

Either way her uncaring co-host sucks.

This looks like typical vasovagal syncope. By far more common in young women than strokes, TIAs.
People who are prone to them tend to get repeated events with triggers such as prolonged standing and stress.
It is often heralded by compensatory palpitations - as a response to a sudden drop in blood pressure which is perhaps what she was pointing to.
Cardiac causes of faint are usually very sudden with no prodrome.