You are alone with an adult man who is choking. another person has gone to get more . you are performing abdominal thrusts when he suddenly collapses. what should you do next?

When you are alone with an adult man who is chocking and another person has gone to get more help. You are performing abdominal thrust when the patient suddenly collapses. The next thing that you should is to perform cardio pulmonary resuscitation (CPR) on the patient and make sure you check the mouth for any object before the rescue breath.  

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other. 

So you and your partner don’t get sexually transmitted diseases and so your partner doesn’t get pregnant