Wear sterile gloves and break off the neck of the glass ampule with a single snap in a downward motion.

Wear sterile gloves and break off the neck of the glass ampule with a single snap to the right side.

Tap the bottom of the ampule, place a gauze pad around the ampule neck, and break off the bottom with a forward motion away from the body.

Tap the top of the ampule, place a sterile gauze pad around the ampule neck, and break off the top by bending it toward the body.