Thyroid 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.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.
Community development district. A community development district (CDD) is a local, special-purpose government framework authorized by Chapter 190 of the Florida Statutes as amended, and is an alternative to municipal incorporation for managing and financing infrastructure required to support development of a community. Contents.
What is CSD? CSD, or Circuit-Switched Data, was a system used on early GSM networks to provide data access to mobile devices by allowing them to place a data call. CSD was capable of uplink and downlink rates of up to 9.6kbps.