A 7-year-old child was playing near a large pile of sand when the ground underneath him collapsed. You can hear him crying and asking for his mother. Until the technical rescue team arrives at the scene, you should:
A) get as close to the edge of the trench as possible and attempt to visualize the child.
B) maintain verbal contact with the child, but avoid going near the edge of the trench.
C) throw the child a rope and ask him to tie it around his waist so you can pull him out.
D) use several long backboards as shoring to decrease the risk of a secondary collapse.
Answer: B) maintain verbal contact with the child, but avoid going near the edge of the trench.
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Before the 1970s, a physician's practice would grow based on:
a. advertising and referrals. b. managed care contracts. c. consultations. d. hospital affiliations.
While talking to your partner one day in between emergency calls, he tells you he has recently read a CE article on pulmonary embolisms. Which of these statements indicates that your partner understands the underlying pathophysiology of how a pulmonary emboli can cause hypoxia?
A) "During an embolic process, the alveoli become inflamed and the walls of the alveoli thicken and prevent oxygen transfer, resulting in hypoxia." B) "A pulmonary emboli occurs when a small bronchiole of a lung becomes plugged by mucus or a clot in the bloodstream, blocking the movement of air into the alveoli, which results in hypoxia." C) "The primary cause of a pulmonary emboli is a blood clot from the legs that lodges in the pulmonary veins and prevents blood exiting the alveolar capillary beds from reaching the heart." D) "When the pulmonary vasculature becomes blocked by an emboli, then blood cannot reach the alveoli for gas exchange, and hypoxia can result."
Which of the following is true regarding testing for the diagnosis of vascular disorders?
a. Most do not have abnormal clinical laboratory tests. b. The platelet count and aggregometry are useful. c. The prothrombin time (PT) and partial thromboplastin time (PTT) are most useful. d. Evaluation of von Willebrand factor (VWF) is useful.
The exposure switch on an x-ray machine is intended to
a. initiate the exposure. b. terminate the exposure. c. both initiate and terminate the exposure. d. rotate the anode up to speed.