A tuberculosis skin ... hours after the injection to see how it reacted to the tuberculin. Your skin’s reaction will help the doctor determine if you have a TB infection. You must begin a new ...

Detecting TB early goes a long way toward avoiding some of the disease's worst outcomes and preventing its spread to others.

A purified protein derivative (PPD) skin test is a test that determines if ... A bump or small welt will form, which usually goes away in a few hours. After 48 to 72 hours, you must return to ...

A tuberculosis (TB) skin test is the first method a doctor may ... The second stage of diagnosis must take place between 48-72 hours after the tuberculin injection. At this appointment, the ...

Coughing, with blood-tinged sputum (phlegm that comes from deep inside the lungs); fever, weight loss and night sweats are ...

The skin TB test involves injecting a small amount of tuberculin (PPD) under the skin on the forearm and checking for a reaction (swelling) after 48-72 hours. A positive result indicates a ...