what should you do before giving breaths to an unresponsive choking person?

Before giving breaths to an unresponsive choking person, it is important to first roll the person onto their back on a hard surface while supporting the head and neck in a straight line. Next, open the person's mouth and check if there is a visible object that can be safely removed. If no object is visible, open the airway by tilting the head back and lifting the chin. Then check for breathing by looking, listening, and feeling for breaths for about 5 seconds. If the person is not breathing, begin rescue breathing by pinching the nose shut, sealing your mouth over theirs, and giving two slow breaths, watching for the chest to rise. If the chest does not rise, reposition the head and try two more breaths. If the airway remains blocked, start CPR with chest compressions which can help dislodge the obstruction before attempting breaths again. It is critical to call emergency services immediately once the person is found unresponsive and choking and to continue the cycle of compressions, checking for objects, and rescue breaths until help arrives or the person starts breathing on their own.