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The first test is read 48–72 hours after injection. If the first test is positive, consider the person infected. If the first test is negative, give a second test one to three weeks after the first injection. The second test is read 48–72 hours after injection. If the second test is positive, consider the person infected in the distant past ...
The equivalent Mantoux test positive levels done with 10 TU (0.1 mL 100 TU/mL, 1:1000) are 0–4 mm induration (Heaf 0-1) 5–14 mm induration (Heaf 2) >15 mm induration (Heaf 3-4) The Mantoux test is preferred in the United States for the diagnosis of tuberculosis; multiple puncture tests, such as the Heaf test and Tine test, are not recommended.
For this reason, the tine test is often considered to be less reliable. [citation needed] Contrary to this, however, studies have shown that the tine test can give results that correlate well to the Mantoux test. [7] [8] If a minor reaction is considered doubtful, the OT test is less accurate and may fail to detect TB, producing a false ...
The test used in the United States at present is referred to as the Mantoux test. An alternative test called the Heaf test was used in the United Kingdom until 2005, although the UK now uses the Mantoux test in line with the rest of the world. Both of these tests use the tuberculin derivative PPD (purified protein derivative). [citation needed]
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The medical history includes obtaining the symptoms of pulmonary TB: productive, prolonged cough of three or more weeks, chest pain, and hemoptysis.Systemic symptoms include low grade remittent fever, chills, night sweats, appetite loss, weight loss, easy fatiguability, and production of sputum that starts out mucoid but changes to purulent. [1]
PPD test, Purified Protein Derivative test or Mantoux test, a screening test for tuberculosis; Postpartum depression, a mental disorder affecting parents within the first year of their child's birth; Pour point depressant, a chemical added to crude oil to lower its "pour point" ppd, Protopanaxadiol, a molecule
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