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Health Tip: Getting a Tuberculosis Skin Test

(HealthDay News) -- A tuberculosis (TB) skin test determines if you have TB germs in your body, says the Centers for Disease Control and Prevention. For the test, a harmless fluid is injected under the skin on the inside of your arm. A very small needle is used.

After a TB skin test, the CDC recommends:

  • Do not bandage, lotion or scratch the spot.
  • If the area itches, apply an ice cube or cold cloth.
  • Return to your doctor 2 to 3 days after your TB test for a reading.

Even if your TB skin test is negative, you may still need more tests. If you have HIV or signs of TB -- such as coughing, chest pain, fever, weight loss or tiredness -- visit your doctor.

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