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TB skin test |
| Test | TB skin test |
| Indication | Tuberculosis |
| Physiology | This test is otherwise called as mantou test or tuberculin skin test. A purified protein derivative is injected under the first layer of the skin in the hand |
| Normal Range | Negative |
| Interpretation | The appearance of red swollen around the injected area after 72 hours indicates the positive reaction for tuberculosis |
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