“Cancer Antigen 125 (CA 125)” has been added to your cart. View cart “Estradiol” has been added to your cart. View cart “Free Triiodothyronine (Free T3)” has been added to your cart. View cart Previous Product Next Product Magnesium, Serum $139.00 Evaluate levels of magnesium in the blood (urine) and determine the cause of abnormal magnesium levels. Magnesium, Serum quantity Add to cart Category: Individual Testing Description Description Magnesium, Serum Related products Quick View Quick View Individual TestingCancer Antigen 125 (CA 125) $109.00 Add to cart Quick View Quick View Individual TestingHLA-B27 Antigen $169.00 Add to cart Quick View Quick View Individual TestingCandida virus A/b IgG $119.00 Add to cart