Rheumatoid arthritis (RA). Research on the effects of collagen type II in people with RA shows conflicting results. Some research shows that taking collagen type II by mouth for 3 months reduces joint pain, swelling, and time to walk 15 meters in people with RA.
Shares 85. The quad screen test is a maternal blood screening test that looks for four specific substances: AFP, hCG, Estriol, and Inhibin-A. AFP: alpha-fetoprotein is a protein that is produced by the fetus. hCG: human chorionic gonadotropin is a hormone produced within the placenta.
During the quad marker screen, a sample of blood is taken from your vein. Substances in the blood sample are measured to screen for: Problems in the development of the fetus's brain and spinal cord, called open neural tube defects; the quad marker screen can predict approximately 75%-80% of open neural tube defects.