Contrast is characterized on the H&D curve by
a. how close the toe is to the origin.
b. the slope of the straight line.
c. how close the shoulder is to Dmax.
d. the density at a given exposure value.
b. the slope of the straight line.
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Your friend tells you that his doctor just prescribed medication for him that he takes with a metered dose inhaler. He says he was nervous and is not sure he remembers his physician's directions. Which one of the following statements would be correct?
a. "Take it every four hours around the clock, even if you feel fine." b. "Make sure to store the inhaler in your refrigerator." c. "When you think you need it, you should call the doctor before taking it." d. "Call your doctor and ask her again how you should use it."
A patient tells you that he is allergic to poison ivy and that while burning it yesterday he accidentally inhaled some of the smoke. He awoke today to find a red rash on the back of his left hand and is concerned. Assessment reveals him to be alert and oriented, with easy respirations and a blood pressure of 128/70 mm/Hg. Which of the following actions should you take next?
a. Tell him you are calling an ALS ambulance for him. b. Assist him with his epinephrine auto-injector. c. Obtain a medical history using the SAMPLE acronym. d. tell him the rash probably has nothing to do with inhaling the smoke.