Since this one's a blood test, you don't need to show up again to have the test read like you do with the PPD.

因为这是血液试验不用像PPD皮试那样再去医院看实验结果。

Some diseases are common in certain areas, so investigations for them could be included, e. g. PPD test for Tuberculosis and Viral Antibodies for hepatitis.

有些疾病在某些地区是常见病，因此可以包括对它们的调查，例如对肺结核的结核菌素检测和肝炎病毒抗体检测。

Testing for TB often starts with a purified protein derivative or PPD intradermal skin test, sometimes known as a tuberculin skin test, Mantoux test or simply TB test.

为检测TB的存在，我们通常从纯蛋白衍生物（PPD）皮内试验开始，也称为结核菌素试验、芒图试验，或就简称为TB皮试。

After doing a screening test with PPD or IGRA, anyone with a positive result typically gets a chest x-ray to look for signs of active TB disease.

在做了PPD或者IGRA的筛查实验后，任何有阳性结果的人员都应该去做一个X线胸片，以探寻是否有TB在体内活跃的表现。