I used a defibrillator in my dream; what does that mean?

I had a dream that my deceased grandmother was lying on my mother's bed in a coma. I came into the room, screaming "What the hell is wrong with you doctors? Why isn't she on monitors?" So, I put her on the monitors to record for brain/heart activities and then she went into cardiac arrest. I took the defibrillator paddles and charged them and I shocked her. She came back to life and was walking and talking normally. What does this dream mean?