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.
The alpha-fetoprotein part of the test can help detect neural tube defects, such as spina bifida. If your risk level is low, the quad screen can offer reassurance of a healthy pregnancy. If your risk level is moderate or high, you might choose to follow the quad screen with another test that's more definitive.