How to perform a valsalva maneuver for svt? if it didn't work, what other maneuver that i can do safely?

Valsalva: A valsalva maneuver is bearing down as if having a bowel movement, or forceful exhalation against a closed airway as in closing mouth pinching nose shut while pressing out as if blowing up a balloon. Also massaging the carotid artery just under the angle of the jaw can arrest svt but do this sitting down or laying down as the drop in pulse can be dramatic.

Some Maneuvers: Bearing down like you are having a bowel movement is the typical maneuver for SVT. You can also try coughing, gagging, or holding your breath pinching your nose with closed mouth and blowing. These maneuvers may fail and if so you should get to your doctor or the ER quickly.