Which of the following statements about the right atrium is TRUE?
A) It is the receiving chamber for deoxygenated blood coming from the vena cava.
B) It is a receiving chamber for oxygenated blood returning from the lungs.
C) It is the major pumping chamber of the heart.
D) It is about 100% saturated with oxygen.
A
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An EMT is rapidly extricating a critically injured patient from a severely damaged vehicle. Which one of the following would the EMT recognize as acceptable given this patient's condition?
A) A vest-type or other short spine immobilization device can be omitted, but a cervical collar and manual in-line spinal stabilization are still required. B) Manual in-line spinal stabilization can be omitted in the vehicle, but should be taken once the patient has been extricated and is on the long backboard. C) A vest-type or other short spine immobilization device still needs to be used to extricate the patient from the vehicle. D) The long backboard can be omitted and the patient can be placed directly onto the stretcher as long as a cervical collar has been applied.
Which factor contributes to increased likelihood of an upper airway obstruction in an infant compared to an adult?
a. Higher percentage of body fat b. Higher volumes of sinus discharge c. Relatively smaller head size d. Tongue that is proportionally larger