750 RADS is way beyond a lethal human dose.
Taking iodine won’t help you if that is the actual radiation dose.
Correct. An adult will start have GI bleeding around 250-300 REMs/RADS and has a good chance at croaking. 500 rems/rads and it’s byebye for real...but there are some new meds that were approved by FDA back ~ 2004 that may help but 750 would mean everyone would have to hunmker down in their basements for several days at least.
It’s kinda like super idiots punping up panic in idiots on threads like these.