
Abbott Laboratories
Free shipping on orders over $99 · 30-day returns
TDX FREE T4 CALCULATION is an FDA 510(k)-cleared medical device (K903383) manufactured by Abbott Laboratories. This device is classified under the Clinical Chemistry specialty. FDA Device Class II (Special Controls) — moderate risk, requires 510(k) clearance. FDA clearance granted on September 9, 1990. Regulation: 8.