{"id":469635,"date":"2026-03-30T23:03:54","date_gmt":"2026-03-30T23:03:54","guid":{"rendered":"https:\/\/www.arcpointlabs.com\/boston\/tests\/cystatin-c\/"},"modified":"2026-06-03T23:03:55","modified_gmt":"2026-06-03T23:03:55","slug":"cystatin-c","status":"publish","type":"product","link":"https:\/\/www.arcpointlabs.com\/boston\/tests\/cystatin-c\/","title":{"rendered":"Cystatin C"},"content":{"rendered":"<p>Experiencing fatigue, fluid retention, or changes in urination? These may be early signs of kidney dysfunction. A Cystatin C Test is a simple blood test that measures Cystatin C levels, a protein that serves as a sensitive marker for kidney function. <\/p>\n<p> Unlike other markers, Cystatin C can help estimate your glomerular filtration rate (GFR)\u2014a key indicator of how well your kidneys are filtering waste\u2014even before significant changes appear in traditional kidney tests. Elevated Cystatin C levels may signal reduced kidney function or early kidney disease. <\/p>\n<p> Monitoring Cystatin C levels allows healthcare providers to assess kidney health, track disease progression, and make informed treatment decisions. Regular Cystatin C testing is an important step for renal health screening and proactive management of chronic kidney disease.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Experiencing fatigue, fluid retention, or changes in urination? These may be early signs of kidney dysfunction. A Cystatin C Test is a simple blood test that measures Cystatin C levels, a protein that serves as a sensitive marker for kidney function. Unlike other markers, Cystatin C can help estimate your glomerular filtration rate (GFR)\u2014a key [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[105,75],"product_tag":[],"class_list":{"0":"post-469635","1":"product","2":"type-product","3":"status-publish","5":"product_cat-general-physician-consult","6":"product_cat-general-wellness","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cystatin C - ARCpoint Labs of Boston<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.arcpointlabs.com\/boston\/tests\/cystatin-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cystatin C - ARCpoint Labs of Boston\" \/>\n<meta property=\"og:description\" content=\"Experiencing fatigue, fluid retention, or changes in urination? 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