Alex
Thinkoutside the box, what were you told in early training, was it not ..... Aviate .....Navigate......Communicate?
Now, do you STILL want to talk to the passengers first? I hope not!
1. AVIATE - Sort the aircraft out (NHP onto oxygen while HP starts descent, then swap roles so both on oxygen) then
2. NAVIGATE - refine descent [descent track speed and altitiude to avoid ground and others], then aircraft systems check.
3. COMMUNICATE - first ATC to let them know, then PA to crew and pax
any other sequence, imho, is incorrect.