Check for dangerous goods

Check to see if anyone else needs help

Wear personal protective equipment

Keep your location safe

Tap the patient's shoulder lightly

call the patient loudly

Observe whether the patient’s chest rises and falls

Observe whether there is airflow from the patient's mouth and nose

Examine the patient's large arteries in the neck

Examine the patient's large arteries in the wrist

Check if you have a CPR mask

Check if there is a respirator

Check if there are emergency medicines

Check if disinfectant supplies are available

Check whether the mask is intact;

Check if the mask is clean

Check whether the respirator is intact

Check whether the respirator is clean

Turn the patient's head to one side

Position the patient's body

Check whether the patient's clothing is obstructing breathing

Check patient's clothing to see if it is impeding CPR

Place your other hand on top of the first

Press straight down;

Maintain compression depth and frequency

Place the mask over the patient's mouth and nose

Give artificial respiration twice

Check patient response

Check patient response

Check patient's breathing and pulse

Adjust CPR depth and frequency as needed

Check patient's breathing and pulse

Check patient's breathing and pulse

Provide patient information

Provide on-site information

Waiting for professional medical assistance

Record the end time of CPR

Record CPR depth and frequency

Clean CPR masks and respirators

Clean patient's clothing

Provide patient information

Provide information about the CPR process

Cooperate with professional medical personnel for follow-up medical treatment.