The tuberculin test as a diagnostic procedure is of marked importance in office practice, in the hospital and in public school work.
The intracutaneous method of applying tuberculin is recognized as the most sensitive procedure available at present, but there are definite difficulties inherent in the method which interfere with its use in some cases. The tuberculin solutions are unstable; the technic is not easy; the patients complain of the pain; the parents' consent to the test is sometimes withheld, and false positive reactions may be encountered in rare cases in the first two years of life.1 These are some of the reasons why the application of the test is not so general as is desired, especially in private practice and in the public schools.
The Pirquet or cutaneous test has an error estimated to be 15.8 per cent (Reiss2); 55 per cent (Smith3) and 58 per
WOLFF E, TEITLER MH. TUBERCULIN OINTMENT PATCH TEST. Am J Dis Child. 1934;47(4):764-770. doi:10.1001/archpedi.1934.01960110047004