Final answer:
When a victim is too large to perform the standard Heimlich maneuver, one may try pressing up into the abdomen using the heel of the hand either from behind or while the victim is lying down.
Step-by-step explanation:
If the victim is too large for you to wrap your arms around the waist, you should perform a modified version of the Heimlich maneuver. Instead of attempting to reach around the waist, you can try pressing up into the abdomen with a quick thrust by using the heel of your hand. This can be done while standing directly behind the victim and reaching up high, or if the victim is lying down, you can kneel over the victim and press down into the abdomen.