Which instrument utilizes contour gating to classify different leukocyte cell types?

Which of the following APR effectiveness clues is monitored by being aware of how labored a firefighter's breathing is?

A. Time B. Weight C. Taste and smell D. Resistance-to-breathing-indicators

Firefighters have pulled a middle-age man from a burning bedroom. The patient is unresponsive and has obvious deformity to his left ankle. His respirations are rapid, stridorous and shallow. Your partner inserts an oropharyngeal airway and begins ventilating the patient with a bag-valvemask. Which one of the following actions would you perform next?

A) Check the patient's breath sounds. B) Instruct your partner to hyperventilate the patient. C) Assess the patient's carotid pulse. D) Find out how long the patient was in the burning structure.