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Doctor insights on: What Does Your Arm Look Like After A Tb Test

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What should my skin look like after taking a TB test?

What should my skin look like after taking a TB test?

See below: A positive PPD is determined by the presence of swelling(induration) around the injection site. Little or no swelling indicates a negative test. Reddness is not used to determine a neg or pos test. ...Read more

Dr. Scott Lindquist
587 doctors shared insights

Mycobacterium Tuberculosis Infection (Definition)

Mycobacterium tuberculosis is an infectious organism that spreads by droplets coughed out by an infected person. Infection is established initially in lungs, but can spread within lungs & to other body parts, or can become latent, with reactivation occurring years to decades later. With effective treatment, it can be completely eliminated although drug resistant ...Read more


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What does a + TB test look like?

What does a + TB test look like?

Positive PPD test: A positive TB test should look like hard, raised bump with size >5to15 mm depending of the risk category you are in. It should be read in between 48 to72 hours. It is the hardness and not redness which is read. Thanks. ...Read more

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What does a positive TB test look like?

What does a positive TB test look like?

Skin test: If you had a PPD skin test and you have no risk factors, a positive test is when after 48 to 72 hoursyou have swelling in the site and redness that measures more than 15 mm, it is considered a positive tb. Test. ...Read more

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What does a negative TB test look like?

What does a negative TB test look like?

Doc: Either your blood test igra is negative or your skin testing does not show any "bump". This should always be checked by a professional since even health care workers report false results. Best to check with a doc and not pa or np or nurse. ...Read more

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What do a positive and negative TB test look like?

TB Tests: I bet you could google image that question. A positive reaction is read after 48 hours from the test. It would be a raised redness greater than 5 mm in circumference. ...Read more

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Is it safe to go tanning after a TB test?

Is it safe to go tanning after a TB test?

No: Tanning is not safe and is not recommended for anyone. It increases the risk of skin cancer and accelerates facial and body aging. Sunscreen with titanium and zinc can help protect you from uva and uvb rays, but avoiding sun exposure is best. Spray tanning and tanning lotions are a reasonable alternative to achieve a bronzed look, but they may not be safe for pregnant/ lactating women. ...Read more

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Is it normal to have a tiny bit of blood after a TB test? The blood is dry now and is less than 1/10 cm.Got the test today.Bleeded right after shot.

Is it normal to have a tiny bit of blood after a TB test? The blood is dry now and is less than 1/10 cm.Got the test today.Bleeded right after shot.

Yes: The standard TB skin test usually involves a small needle injecting test material under your skin. To get it in the proper location the needle will often cause a small amount of blood leak out at the injection site. ...Read more

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How badly does a TB test hurt? I'm extremely terrified of needles and would like to know how bad it will hurt.

None: It does not hurt much.You would feel it as much as you feel an insect bite. To distract yourself get an activity going while it is being done. Goodluck ...Read more

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What does a positive TB test mean?

Chest X ray: It is possible to have active TB with very little symptoms especially early on. However, it is more than likely that you carry the germ for TB in a dormant form, this is called latent tb. No symptoms are expected with latent tb. ...Read more

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How do I know if I have a positive TB test?

If there is a bump: When TB infects the body the infection gets walled off by antibodies. The medical person injects a manufactured antibody under your skin that reacts to the TB antibody. If a bump appears at the injection site after 48 hours it means you have the antibody to TB already in your body and therefore have TB infection. It does not mean that you have active disease or are contagious. ...Read more

Dr. Klaus D Lessnau
1,185 doctors shared insights

Tuberculosis (Definition)

Is an infection in the body with mycobacterium tuberculosis. It is almost always acquired via the respiratory tract from which it can spread to other organs. After that, the immune system walls the bacteria off. All of this usually occurs without symptoms. After that, activation of the infection can occur in about 10% of the total patients. Half of this risk is in ...Read more