Do not use SST or any type of serum separator tube. Mix blood with EDTA immediately by gently inverting tube 8-10 times. All tubes must be labeled. Refrigerate until transported. Complete Form DHHS 2828.
Mail specimens on the day of collection.
Specimens may be routinely collected Monday-Thursday. The first screen should be done early in the pregnancy. The second screen should be performed after 24 weeks gestation.