A Manual of Biological Therapeutics; Sera, Bacterins, Phylacogens, Tuberculins, Glandular Extracts, Toxins, Cultures, Antigens, Etc
A Manual of Biological Therapeutics; Sera, Bacterins, Phylacogens, Tuberculins, Glandular Extracts, Toxins, Cultures, Antigens, Etc
Parke, Davis & Company
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27, 1909, page 675: My method of applying the test is as follows: The skin of the forearm is scrubbed with ether, then two drops of undiluted Old Digitized by Google 130 TUBERCULINS Tuberculin are dropped about four inches distant from each other. Then, with a vaccinating lancet, the point of which has the form of a small chisel, a superficial circular scarification is made between the two drops (for the control of the traumatic redness following the small scarification). Finally, the same scar...ification is made inside of the two drops. A few fibres of cotton are put on the drops so that they will not flow. After five minutes the cotton is taken off. No dressing is applied. The papule is examined after twenty-four and forty-eight hours. It is considered as positive when the tuberculin scarifications are clearly different from the control, but the inflamma- tory reactive area must measure at least one-fifth of an inch (5 mm.) Preliminary: Cleanse the site chosen with soap and water, and carefully dry.
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