Increase in catecholamine levels due to blood loss causes:

Which one of the following would most immediately interfere with the life support chain?

A) Dilation of airways B) Diet high in carbohydrates C) Breathing 16 times per minute (adult) D) Atmospheric oxygen level of 18%

Which of the following is NOT performed during the "Airway" phase of the primary assessment?

A) Head-tilt, chin-lift maneuver B) Suctioning C) Insertion of an oropharyngeal airway D) Obtaining the respiratory rate