He is unable to stand, even holding onto the walker, while
coughing and sputtering. I'm reluctant to whack between the
shoulder blades when things seem out of control because he IS
still managing to get air, but he is not able to stand, bend over,
or have me try to do the Heimlich maneuver. Eventually the
choking subsides, leaving him weak, exhausted. This doesn't happen too often, but it is, of course, awful when it does.
I hope some of you caregivers out there have reliable knowledge how to handle such a frightening situation.