Broadside, depends from level of SHTF and seriousness. I have seen patients died (babies too) simply because electricity is gone and no generator, or no oxygen.So who knows.
I like to cover as much as I can from my field, so I have ET tubes, O2, BVM s, and similar equipment, it is simply stuff from my field of knowledge, so I have it.
I am perfectly aware that there is no too much sense to ventilate dead guy in the middle of nowhere, in the middle of SHTF, but we do not know what kind of scenario we will face.
Maybe we gonna have some means of transporting the family member to the place where there is still higher level of care. Nobody knows.
I just have things that I am trained and skilled to use, we ll see.