Seriously, the only thing you can really hope to do is hope you a very far from it when it happens and out of any fallout plumes. Nothing you can actively do in advance will guaranty your survival. Blast shelters are worthless. Fallout shelters may help some, if you are in a fallout plume but it is unlikely you will build it and keep it properly stocked with everything needed - remember you will NOT be able to stock it during an emergency situation.
to protect yourself and threaten other countries
U should wear some helmets to protect yourself.
you should be trained for this
You should wear insulated gloves to protect yourself from electrical sparks.
stay indoors
You should take out a policy for earthquake insurance.
You can protect yourself by wearing sunglasses. You should apply sun screen.
stop writing on your self
don't panic
Following a nuclear detonation, it's crucial to establish a safe perimeter and assess the situation. Casualties with survivable injuries should be decontaminated as soon as possible to reduce radiation exposure. This can involve removing contaminated clothing, washing skin with soap and water, and using specialized decontamination procedures if available. Medical personnel should prioritize treatment for life-threatening injuries while minimizing further exposure to radiological materials.
Yes, you should wear a mask when sanding to protect yourself from inhaling dust particles.
Always. If you are administering pills they should be worn to protect the patient from you. If you are coming into contact with saliva or blood then you should wear them to protect yourself from the patient.