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What is the function of the smooth muscle in the trachea? Where is smooth muscle located in the wall of the trachea in relation to the ciliated epithelium and cartilage?

Assign the correct START triage categorization to each patient.

According to the start triage process, a patient should receive a red tag if his or her respiratory rate is greater than ___ breaths/min.

Under certain conditions, gases given off by the contents of a silo can explode.

Airbags that did not activate during a crash pose no threat to responders.

Helicopter transport is only for patients who have experienced a traumatic injury.

What part of the heart rhythm represents ventricular depolarization.  

*Extra Credit Question* You have a patient receiving 50% O2 via a nasal cannula. Barometric pressure is 600 mmHg and Water vapor pressure is 50 mmHg. The patient’s respiratory quotient is 0.8. An ABG was drawn with this results pH 7.38 PaCO2 40 PaO2 90 HCO3 22.   Calculate the Patients’ PAO2 with correct units of measure.

When checking capillary refill how long should it take for the nail bed to refill and turn to pink?

Map the path blood takes through the heart starting at the Vena cava and ending at the aorta.