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 results can help you decide whether to have amniocentesis, an invasive diagnostic test, to find out for sure about your baby's condition. Screening tests tell you how likely it is that your baby has a condition, but only a diagnostic test like amniocentesis tells you whether your baby actually has the condition. While the quad screen carries no risk for the mom or baby, amniocentesis does have a small risk of miscarriage.