Hello i am new to the forum here and also have only been a emt for three months,i work for a company that takes all of our counties 911 calls,so anyway the other night i worked my first cardiac arrest.And was just wanting some pointers or advice from people with more experience than me.So the run goes something like this first off i will go ahead and point out that the patient died,it was a bad call from the start,dispatch gave us the wrong address,which wasnt thier fault,it was a unknown medical alarm,and the company gave them the wrong numbers we were only a half a block away,secondly we could not get inside the door was locked and the patients sister wich was on scene did not have a key,so she got in touch with miantenance and they brought one,the pateint lives in government housing.So through all of this patient contact was not established until twenty to twenty five minutes after the alarm.When i first saw the pateint the first thought i had was he is dead,we immediatley started working him,we got an et tube in place on first attempt,and i did compressions for ten solid minutes while waiting on back up,[and wow compressions are very tiring]any way back up arrived we laoded him up and transported,the hospital immediatley called time of death,patient was in the proximity of 400-500 pounds and had a signifigant cardiac history,i not upset so much that he died as i am wondering should we have done more to try to get to him,my partner was a seasoned medic and i just followed his lead,but i guess i wonder what cuold we have done,sorry about the sloppy typing this is my first post of any kind any where.