{"product_id":"natural-killer-nk-cells","title":"Natural Killer (NK) Cells","description":"\u003cp\u003eNatural killer (NK) cells are a type of white blood cell that provides frontline defense against virus-infected and abnormal cells. This test uses flow cytometry to measure the number and percentage of NK cells in your blood. Low NK cell counts are associated with greater susceptibility to certain viral infections, including cytomegalovirus and varicella, and can be relevant when evaluating immune function or recurrent infections. It is typically ordered as part of a broader immune workup rather than on its own.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnostic Blood Test:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAbsolute Lymphocytes\u003c\/li\u003e\n\u003cli\u003eNK Cells (CD3-CD16+CD56+), absolute count\u003c\/li\u003e\n\u003cli\u003eNK Cells (CD3-\/CD16+CD56+), percentage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Marek Diagnostics","offers":[{"title":"Default Title","offer_id":52648290124050,"sku":"QST-176","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/7427\/5858\/files\/natural-killer-nk-cells.webp?v=1787755846","url":"https:\/\/marekdiagnostics.com\/products\/natural-killer-nk-cells","provider":"Marek Diagnostics","version":"1.0","type":"link"}