Let's bear in mind that emergency is something that comes unexpectedly and most time can be very life threatening.
so it may be a matter of life and death and if so anything can happen.
if in the emergency situation you are able to see money to borrow and you are sure of paying back without any problem, then you go ahead and keep holding your bitcoin but if not, I will advice you sell and save your life first, and that's if the emergency is life threatening.
remember that health is wealth and it's the living that invests and holds.