Word: reagents
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Dates: during 1920-1929
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Rapid Blood Tests. The careful Wassermann blood test for syphilis requires five reagents and almost 24 hours' reacting time, an inconvenience to the diagnostician and a nerve-racking wait for the patient. Dr. R. le Kahn of the Michigan State Health Department demonstrated a new test which requires only one reagent and 15 minutes to show definitely the blood condition. His department and the U. S. Navy have adopted his quick method, it was said...
...university could furnish, however ideal its equipment might be would demand the contribution by the student of a certain amount of individual judgment, in reality a much greater amount than in the kind of university where education comes wrapped in neat patterns. If the student still furnished no intellectual reagent of his own, the compound would bear very little greater resemblance to education than it does at present...
...measuring rheostat" for determining the wave rate "ohmage" of the specimen. These are connected to an electrode on the forehead of a healthy human being, called the " re-agent," who stands stripped to the waist and barefooted on two metal grounding plates. The doctor "percusses" the abdomen of the reagent, i.e., thumps the back of his left hand with the middle finger of his right, on which is a weighted thimble. The abdomen normally shows a "line of dullness," below which a hollow sound is elicited. Different diseases in the patient's blood specimen cause different "areas of dullness...