Q: When should I call a doctor?
A: A consultation with your physician or tuberculosis specialist is advised if the results of the above tests come as abnormal.
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Q: What is meant by false positive and false negative test?
A: A false positive test means that the test has turned positive despite the patient not suffering from the disease. A false negative test means that the person suffers from the disease, yet the test has given a negative result.
Q: Which of the above test is preferred?
A: The blood tests are preferred over the tuberculin test. However, they are expensive and may not be feasible to be carried out on a large number of people especially in the underdeveloped countries. They should also not be conducted in children less than 5 years.
Q: My tuberculin test shows a red area but no induration. Is it positive?
A: No. Induration is necessary to read the test as positive.
