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.
When you consider your test results, remember that the quad screen only indicates your overall risk of carrying a baby who has certain chromosomal conditions or neural tube defects. A low-risk result doesn't guarantee that your baby won't have one of these conditions.