what does a positive tb skin test look like

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Dr. Marcelo Laufer answered:

Can all europeans test positive for tuberculosis on the tb skin test because europeans get a vaccine for it?

No

Skin
if you get bcg (tb vaccine) you can get false positive ppd for up to 4 years. A blood test quantiferon will differentiate false positives from true positives
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If my tb skin test ran positive but I've never had tuberculosis, does that mean I have latent tb? And do I HAVE to take antiobiotics if I do have it?

Possible exposure.

Mycobacterium_tuberculosis_infection
If PPD is positive than you need a screening Chest xray. If Xray negative than 9 months of One med INH should be taken to prevent activation of possible dormant TB
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If I have a positive TB skin test, does that mean I have TB?

Not necessarily

Tb_skin_test
(+) PPD means that you have been exposed to the TB agent. It doesn't say when. So if you had the TB in the past, it still will be (+) because your body "remembers" from the previous exposure. The greatest risk is if the TB agents are latent in your body, that's why everyone with a (+) PPD will have either a complete treatment with 4 medications or a mild one with only one. Your PPD will remain (+)
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Dr. Oscar Novick answered:

Is it okay to donate blood if I had a positive tb skin test but negative chest x-ray?

Positive skin test

Skin
You can donate blood as long as you dont have active tb
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How do doctors differentiate between a positive TB skin test due to BCG vaccine vs latent TB infection?

Blood test

Latent
There is a blood test which can help tell the difference
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Dr. Cornelia Franz answered:

If you have a tb skin test and it turns a little red and looks like a bug bite is this a positive or negative test?

Depends

Skin
on the size of the swelling or induration. This is why they need to be seen and read 48 hours after being placed.
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What to do if I have a positive on my tb skin test?

Seek out information

Skin
Most will be followed first with a chest X-ray looking for active pulmonary disease. If negative, you are likely started on one TB drug, depending on your local as treatment for latent (quiet) TB. If you are found to have active TB, you are likely started on a 4 drug program that lasts for up to a year to knock it out. Get with your doc to see.
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Dr. Boris Ripa answered:

If a person had TB as child and underwent treatment for it, could he have a false positive Tb skin test as an adult?

Yes

Tb_skin_test
once you had a positive ppd test,it will stay positive whole your life. chest x-ray,what you need to do every few years
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Dr. Sewa Legha answered:

Normal chest x ray & Abdominal/pelivic CT scan, but positive TB skin test? I have low grade fevers, extreme fatigue & swollen lymph nodes. TB?

It seems like it

Tuberculosis
You should seek a consultation with a Infection(ID) specialist to help you decide about treating your TB infection.
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Neutral_expert_x_teeny

always had positive tb skin test last chest X-ray 5 yrs ago now have supraclavicular swelling after prednisone/cortisone possible tb? What to ask Dr

Ask when next appt?

Prednisone
This could be TB, but might be one of several other infectious, musculo-skeletal, or related conditions. It needs examined by a Doctor, soon. Questions the provider asks should help direct yours beyond just "what is it?" Initial CXR or CT scan will likely yield more information to base questions (and treatment, if needed) on.
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