Each program includes serum samples and documentation sufficient for a six-month cycle. One sample is tested and results submitted to Bio-Rad every two weeks. Results may be submitted by fax, mail or electronically using the EQAS eForms software. Registered participants will automatically receive bi-weekly reports and a detailed End-of-Cycle summary report.

Analytes

	PROGRAM 1
	Thyroid Function		Down's Syndrome/Pregnancy		Iron Metabolism
	T3 Uptake/T-Uptake Thyroid Stimulating     Hormone (TSH) Thyroxine Binding     Globulin (TBG) Thyroxine (T4), Free Thyroxine (T4), Total Triiodothyronine     (T3), Free Triiodothyronine     (T3), Total		Alphafetoprotein (AFP) Chorionic Gonadotropin     (hCG) Estriol (Total) Placental Lactogen (hPL) Unconjugated Estriol		Ferritin Folate Transferrin Vitamin B12

	PROGRAM 2
	Reproductive Endocrinology		General Endocrinology		Others
	Chorionic Gonadotropin (hCG) DHEA-Sulfate Estradiol Follicle Stimulating     Hormone (FSH) Luteinizing Hormone (LH) Progesterone Prolactin Sex Hormone Binding     Globulin (SHBG) Testosterone		17-a-OH-Progesterone Aldosterone Cortisol Gastrin Growth Hormone (hGH) Insulin Parathyroid Hormone     (PTH), Intact		Angiotensin Converting     Enzyme (ACE) Digoxin Renin (Angiotensin I) Renin (Direct)

	PROGRAM 3
	Specific Proteins				Pathological Proteins
	a-1 Acid Glycoprotein a-1 Antitrypsin a-2 Macroglobulin b-2 Microglobulin Albumin C-Reactive Protein (CRP) Ceruloplasmin Complement C3		Complement C4 Haptoglobin Immunoglobulin A (lgA) Immunoglobulin E (lgE) Immunoglobulin G (lgG) Immunoglobulin M (lgM) Prealbumin Protein (Total)		Anti-Streptolysin-O (ASO) Rheumatoid Factor (RF)

	PROGRAM 4
	Oncology
	Alphafetoprotein (AFP) CA 15-3 CA 19-9 CA 125 Carcinoembryonic Antigen     (CEA)		Chorionic Gonadotropin     (hCG) Prostate Specific Antigen     (PSA), Free Prostate Specific Antigen     (PSA) Free/Total Ratio		Prostate Specific Antigen     (PSA), Total Prostatic Acid Phosphatase     (PAP)