Antibodies that attack the thyroid gland cause inflammation and impaired function of the thyroid. Your doctor may also order a TPO antibody test if you are pregnant and have an autoimmune disease, especially one that involves the thyroid, such as Hashimoto's disease or Graves' disease.Some people with TPO antibodies may not have thyroid disease.hyroid peroxidase (TPO), an enzyme normally found in the thyroid gland, plays an important role in the production of thyroid hormones. A TPO test detects antibodies against TPO in the blood.
From Wikipedia, the free encyclopedia. USB communications device class (or USB CDC) is a composite Universal Serial Bus device class. The class may include more than one interface, such as a custom control interface, data interface, audio, or mass storage related interfaces. The communications device class is used primarily for modems, but also for ISDN and fax machines and telephony applications for performing regular voice calls.
USB is a hot-swappable technology, meaning that USB devices can be added and removed without having to restart the computer. USB is also âplug and playâ. When you connect a USB device to your PC, Windows should detect the device and even install the drivers needed to use it. There are two versions of USB. The original version of USB, USB 1.0, only supported speeds of up to 11 Mbps and was used mostly to connect keyboards and mice.