Radioimmunoassay, Total Triiodothyronine

How Is CDP Classified?

Radioimmunoassay, Total Triiodothyronine is FDA product code CDP, Class 2, 21 CFR 862.1710.

What Does It Take to Sell It in the United States?

It is exempt from premarket notification: the manufacturer registers its establishment and lists the device, and no 510(k) is needed before it is sold in the United States.

What Has Gone Wrong With It?

The FDA has recorded 20 recalls under this product code since 2006. None was by a company in China. The root causes the FDA records most often are Device Design (8), Nonconforming Material/Component (2) and Employee error (1).

A recall is a fact about one product and its maker, not a grade for every manufacturer of the type.