Laboratory	Category	Test Name	Description	Turn Around Times	Sample, Packaging & Shipping Requirements	CPT Code	Form
IRL	Red Cell Serology	Drug Dependent Antibody Studies	Tests for identification of drug dependent antibodies	Depends upon request; See TAT description	2 large EDTA or red top tubes; sample of drug under investigation, in the same form (tablet, solution, capsules) that the patient is receiving	86850, 86970, 86975, 86976	Form BS 313
IRL	Red Cell Serology	Special Serum Studies (0.01 M DTT, others)	Selective inactivation of IgM class immunoglobulin	Depends upon request; See TAT description	1 plain red top and 4 EDTA tubes (No gel separator tubes); Shipped in a container maintaining temperature between 1C - 10 C	86975	Form BS 313