TB test????

Question

I have a small rasied bump around the sight of my TB test? it has been 48 hours. Does this mean it is positive???

Answer 1

No that is normal. And don't listen to that other guy, because my bump lasted for about 4 days. You should be fine.

Answer 2

NOT NECESSARILY!
It depends on how large the bump is. Generally, it has to be 15 mm (1.5 cm) of redness to be considered positive unless you have certain diseases (i.e. kidney disease) (and then it is 10 mm or 1 cm), and even then, if you are allergic to any of the components of the shot, it may not be positive. The test should be read between 48 and 72 hours. Reasons for a positive test include exposure to TB, having had a BCG vaccination outside the USA, or allergy to one of the components of the vaccine (some states still use horse serum to place the protein antigen in that your body is supposed to react to, and if you are allergic to horses, you could react to that).

Go get the test read; if it is positive, they will have you have a chest xray and likely start you on three months of antibiotics.

Hope this helps,
Julie

Answer 3

TB skin tests are usually read at 72 hours. Some people get redness or a bump early on due to the insult to the skin. If it's still there tomorrow, then worry. Be sure to go back to where you got the test and have it read so that the results will be in your medical record. If you don't have it read, they will usually make you repeat the test.

Answer 4

Forty-eight to 72 hours after the Mantoux / PPD tuberculosis skin test is performed, you will need to return to your healthcare provider to have the results read. This involves a brief examination of the test site.

A nurse will look at the test site and palpate the area to determine if the test site is raised and feels hard to the touch. He or she will use a ruler to measure the raised bump, if one exists. The nurse will record the results in millimeters to represent the size of the raised bump. If the test site does not have a raised bump, "0 mm" will be recorded.

Interpretation of the Mantoux / PPD tuberculosis skin test depends on the following:

# the measurement in millimeters of the raised bump
# the person's risk of tuberculosis infection or for progressing into tuberculosis disease

Mantoux / PPD tuberculosis skin test results showing a raised bump measuring 5 mm or greater is interpreted as a positive result in the following:

# persons with weakened immune systems, such as those with HIV/AIDS

# persons who have been exposed to persons with active TB

# persons with fibrotic changes on chest x-rays/scans that are consistent with an old TB infection

# persons with organ transplants and other immunosuppressed patients (receiving the equivalent of > 15 mg/day of prednisone for > 1 month)

Mantoux / PPD tuberculosis skin test results showing a raised bump measuring 10 mm or greater is interpreted as a positive result in the following:

# persons recently (<5 years) arriving to the U.S. from a foreign country

# persons who use injectable drugs

# persons who live or work in high-risk environments, such as cities and crowded areas

# persons who work in laboratories, especially Mycobacteriology

# Children under the age of 4

# Children and adolescents exposed to adults in high-risk environments

Persons with test sites showing a raised bump of 15 mm or greater are considered to have a positive test result.

Answer 5

It all depends on how big, how red, and alos you might have gotten soap, or perfume in there. i wouldnt worry much til i had it read