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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can TB Test Be Predicted With No Changes On Skin?

Hi i just got my TB test skin yesterday and i took off the bandage the nurse put on the spot last night but now i don't remember where the spot was. My skin did not turn red and i see no changes and I"m suppose to get it read tomorrow but i don't know if they can read it because there was no changes on my arm.
Thu, 5 Feb 2015
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General & Family Physician,  's  Response
hi
i appreciate your concern
reading is taken 48 to 72 hour of injection
since you are not able to seen any reaction or induration it wii be recorded as 'zero'
Reaction to the PPD or tuberculin test is suppressed by the following conditions and test would be read a false negative
Infectious mononucleosis
Live virus vaccine - The test should not be carried out within 3 weeks of live virus vaccination.
Sarcoidosis
Hodgkin's disease
Corticosteroid therapy/Steroid use
Malnutrition
Immunological compromise
in such a case a second tuberculin test is necessary it should be carried out in the other arm to avoid hypersensitizing of the skin
Hope this helps you
thanks for using health care magic
have a nice day
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Can TB Test Be Predicted With No Changes On Skin?

hi i appreciate your concern reading is taken 48 to 72 hour of injection since you are not able to seen any reaction or induration it wii be recorded as zero Reaction to the PPD or tuberculin test is suppressed by the following conditions and test would be read a false negative Infectious mononucleosis Live virus vaccine - The test should not be carried out within 3 weeks of live virus vaccination. Sarcoidosis Hodgkin s disease Corticosteroid therapy/Steroid use Malnutrition Immunological compromise in such a case a second tuberculin test is necessary it should be carried out in the other arm to avoid hypersensitizing of the skin Hope this helps you thanks for using health care magic have a nice day