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.
Laboratory Tests. 1  Laboratory tests can be useful to help diagnose conditions with symptoms similar to fibromyalgia, such as rheumatoid arthritis, SjÃ¶gren syndrome, thyroid disease, and lupus. It is not usually cost effective or necessary to do extensive screening. General tests that may be ordered include: 1  CMP (comprehensive metabolic panel) â to examine electrolytes, proteins, liver and kidney function, calcium, and glucose. 2  CBC (complete blood count) â to look for anemia, a possible cause of weakness and fatigue.