Answer:
Physical barrier
Explanation:
kaila is treating patient at scene of an automobile accident and she is having difficulty in hearing patient's voice due to police sirens, so such kind of communication barrier that which could be either environmental or natural condition that does not allow the transfer of message from one person to the other is called 'physical barrier'.
Physical barriers do not allow the communication to be effective. Hearing problems due to thunders, sirens, call disconnection, message not sending all come under physical barriers.
The American heart association changed ABC (Airway, Breathing, Compressions) to CAB (Compressions, Airway, Breathing) because when the ABC sequence to perform CPR was performed, people would spend so much time trying to open the airway that there was a delay in chest compressions making rescue breathes harmful. With the new CAB sequence people initiate chest compressions sooner and ventilation is only slightly delayed.
Hope this helps!
<span>Your understanding should begin with the definition of impulse.. </span>