DS-3 In North America, a digital channel which communicates at 45 Mbps, or 28 T1 lines.

GoldBamboo

... Why get tested?
To help diagnose hyperthyroidism

When to get tested?
If you get an abnormal TSH or T4 result

Sample required?
A blood sample taken from a vein in the arm
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Lab Tests Online - more...

T3 or T-3 is used for various purposes as a designation, abbreviation or ide ...
Wikipedia - [full article]

Resources

  • T3 (Lab Tests Online)