Helping People

Can we sue a stranger and ambulance attendant for negligence after an accident?
My sister had an accident. Some stranger called the ambulance and took her to the hospital. While they were trying to get my sister inside the ambulance, my sister fell on the ground and got some bruises. Can we file a case against the stranger and the and the ambulance attendant for such negligence?
Can I sue a stranger for giving me CPR instead of taking me to a doctor?
A stranger on the road gave me CPR when I fainted after complaining of chest pain. He could have taken me to the doctor directly instead of doing that. Can I sue him for compensation for endangering my life?
What should I do if a family blames me for a death after I helped someone?
I am in trouble for helping a guy. This guy fainted. I got him water and tried to make him feel better. Few days after this guy passed away due to some disease. Now the family is behind me saying that I killed him. What can I do in this situation please help. I live in Maine.
Can I sue a Good Samaritan for leaving me after a stroke?
I had a stroke while climbing the stairs to office. A person who works in the next building saw me in pain and took me to the hospital. When the nurses came to attend me, he left the place without telling anyone. Now I know this person as I’ve seen him many times near and around my office building. Can I sue him for leaving me without calling my family or arranging for a good doctor?
Can a nurse face legal trouble for providing emergency care to a child?
I saw a 5 year old kid outside my hospital. He had several injuries on his body (later I got to know he was hit by a car) this kid was probably brought by someone and left there. As soon as I saw the kid, I got him inside and started the treatment. The doctors came and his life was saved. Can I land into trouble for this (I work as a nurse)?