02285nam a22002057a 4500001001300000003000400013005001700017008004100034245015000075520150800225580006201733650002001795700004001815700002501855700002101880700003201901942000701933999001501940952012401955D0001J000407DOH20210405153710.0210405b           ||||| |||| 00| 0 eng d00aTuberculin skin test conversion among new employees at the Lung Center of the Philippines /cClarizze Francesca C. Moje-Tapang [and three others]3 aOBJECTIVE: To determine the tuberculin skin test conversion rate among new employees at the Lung Center of the Philippines.

DESIGN: Descriptive with analytic component

SETTING: Employees' Clinic Lung Center of the Philippines

STUDY SUBJECTS: All newly hired employees

METHOD: Two hundred thirty-seven subjects were administered 5 TU of PPD on the volar surface of the forearm. Results were interpreted after 72 hours and recorded. Subjects with a reading of less than 8mm in duration had a repeat testing after 2 weeks. Subsequent testing was done for those who remain to have a negative tuberculin skin test result at the end of 3-and 6-months.

RESULTS: Two hundred thirty-seven subjects completed the study after 72 hours from initial Tuberculin skin test (TST), 150 subjects were PPD-positive (63.3%) while those PPD-negative were 87 or 36.7%. A repeat TST was done after 2 weeks on the 87 subjects who were PPD-negative after the initial TST. Among these, 67 or 77% remained PPD-negative, 14 or 16.1% were PPD-positive while 67 subjects, 48 or 72 converted to PPD-positive and 18 or 27% remained PPD-negative. At the end of 6 months, of the remaining 18 subjects, 14 or 77.8% became PPD-positive while only 1 or 5.6% was PPD-negative. Therefore, out of the 67 subjects who were PPD-negative initially 72% converted after 3 months and this further increased to 92.5% at 6 months.

CONCLUSION: There is a very high risk of getting a tuberculin infection upon exposure to the hospital environment.  aThe Filipino Family Physician, 2011  49 (4) pages 150-158 2aTuberculin Test1 aMoje-Tapang, Clarizze Francesca C. 1 aBalanag, Vincent M. 1 aIdolor, Luisito 1 aSalvador,  Arlene Marie B.   cJA  c3890d3890  00102nlm4070aDOHCLbDOHCLcElectronicResd2021-04-05l0oJ000407pD0001J000407r2021-04-05 00:00:00w2021-04-05yJA