Sounds like an all day surgery that ended after hours (cleaning crew in for the night cleaning) and a skeleton crew of nurses present with no physician. Was this office based or ASC? For some facilities like this, there is not really much difference in phase I or II recovery. The opioid dose seems heavy handed, but just because that is what the husband reported does not mean that was the actual chain of events. Plus, we don't know the previous opioid dosing from the intraoperative period. However, 150mcg bolus of fentanyl in a fresh post op patient who had previously received 250-500mcg intraoperative is going to cause apnea almost every time. Add in 0.5 of hydromorphone and it is compounded even further.
I have seen PACU onset LAST and doses of local in these cases can be excessive and close to or higher than toxic levels. An acute event such as a PE cannot be ruled out except by autopsy. Cardiac event is unlikely , but should be considered. Sounds like an opioid event if the husband's description is accurate. If the surgery had finished 2 hours earlier and the full staff were present, to include an anesthesiologist, an opioid event could have been managed easily. As it stands, it sounds like the nurse had to take frequent breaks from the woefully inadequate resuscitation to go get equipment and naloxone. So, my bet is an opioid event exacerbated by inadequate staffing to deal with an emergency.
If the dosing described is accurate, I wonder what the experience level of the nurse caring for her was. Fentanyl 25 mcg q 10 minutes would be as aggressive as I would get in that scenario.
Moral of the story is, an all day vanity plastic surgery is not a walk in the park and should be approached with caution. If this involved tumescent liposuction in abdomen, buttocks, thighs, plus who knows what else (breast aug?), that is a lot of local administered. Lots of potential for fluid shifts putting those large volumes subcutaneously. Florida had a big problem with cases like this done in strip mall plastic surgeon offices a few years back. Numerous deaths, such that they basically put a moratorium on the surgeries for a while. Not sure the current status in Florida.
Very sad for the family. Sounds like this is all compounded by the fact that she was a social media influencer who was documenting her experience for her followers. Terrible all around.