The precordial leads provide a view of the:
A) lateral plane of the heart, including part of the right ventricle, most of the left ventricle, and the septum.
B) horizontal plane of the heart, including the right ventricle and right atrium.
C) inferior portion of the heart, including the entire right ventricle.
D) horizontal plane of the heart, including the left ventricle and septum.
D
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Your patient is a 16-year-old male who attempted suicide. He is unconscious and apneic, lying supine on a garage floor. The family states that they found the patient unconscious in the front seat of a car that was running in an enclosed garage. HR = 70, BP = 100/60, RR = 0. In addition to an IV of normal saline, which of the following is the most appropriate action?
A) Intubate, remove the patient from the garage, and transport to a hospital with a hyperbaric chamber. B) Remove the patient from the garage, initiate BVM ventilations with 100 percent oxygen, intubate, and transport to a hospital with a hyperbaric chamber. C) Remove the patient from the garage, initiate BVM ventilations with 100 percent oxygen, intubate, and transport to the nearest facility. D) Remove the patient from the garage, intubate, and transport to the nearest hospital.
Which of the following is TRUE regarding capillaries?
A) They consist of three layers or coats. B) The thinnest layer is the tunica adventitia. C) They contain valves to limit back flow of blood. D) Red blood cells move through in single file.