Capillaries allow oxygen and nutrients to pass through to body cells
Indicate whether the statement is true or false
True
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Emphysema may be caused by all of the following EXCEPT:
a. inhaling asbestos fibers. b. ?1-antitrypsin deficiency. c. secondhand cigarette smoke. d. air pollution.
Angie has been working in the radiology center at a local hospital for the last 5 years. This morning, her supervisor called Angie into her office and told her that her last dosimeter reading was above the maximum allowable level. Which of the following is Angie's best response?
A. Ask for a transfer to another area of the hospital B. Ask the supervisor to cut her hours C. Tell the supervisor the reading must be wrong D. Ask for protective clothing to prevent further exposure E. Review her work practices for radiation safety
When inserting an oropharyngeal airway in an infant or child, you should:
A. place padding under the child's head. B. ensure that his or her neck is hyperextended. C. insert it until the flange rests on the teeth. D. depress the tongue with a tongue depressor.
Which valve lies at the base of the ascending aorta?
a. tricuspid c. pulmonary semilunar b. aortic semilunar d. mitral