Public Health Agency of Canada
www.publichealth.gc.ca
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Tuberculin Skin Test
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Preparing for skin testing |
Approach the skin at a 30 degree
angle |
Injecting the solution |
The wheal (front view) |
The wheal (side view) |
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Mark the site |
Reading the TB skin test |
Taking the measure- ment |
Necrotic pustular reaction |
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