{"id":23748,"date":"2026-06-25T20:52:33","date_gmt":"2026-06-25T15:22:33","guid":{"rendered":"https:\/\/johnsonfrancis.org\/general\/?p=23748"},"modified":"2026-06-25T20:52:45","modified_gmt":"2026-06-25T15:22:45","slug":"urine-metanephrines-elevation-key-conditions","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/","title":{"rendered":"Urine Metanephrines Elevation: Key Conditions"},"content":{"rendered":"<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/qBUweQxZklI?si=QgGTpg81nA2XRDBm\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n<p class=\"wp-block-paragraph\">Elevated 24-hour urine fractionated metanephrines (metanephrine and normetanephrine) indicate a hyperadrenergic state. Most commonly these elevations are looked for when working up secondary hypertension, but the differential spans tumors, severe physiological stress, and pharmacological effects.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Catecholamine-Secreting Tumors<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">These are the primary pathological targets when ordering this assay. Tumors typically cause elevations greater than 2 to 3 times the upper limit of normal.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Pheochromocytoma:<\/strong> The classic neuroendocrine tumor of the adrenal medulla.<\/li>\n\n\n\n<li class=\"\"><strong>Paraganglioma:<\/strong> Extra-adrenal tumors arising from sympathetic (secreting) or parasympathetic (usually non-secreting) ganglia.<\/li>\n\n\n\n<li class=\"\"><strong>Neuroblastoma and Ganglioneuroma:<\/strong> Tumors of neural crest origin, primarily seen in pediatric populations.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. Severe Physiological Stress<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Any condition triggering a massive endogenous sympathetic surge can cause mild to moderate elevations (usually less than twice the upper limit of normal).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Acute Cardiovascular Events:<\/strong> Acute myocardial infarction, acute decompensated heart failure, and cardiogenic shock.<\/li>\n\n\n\n<li class=\"\"><strong>Critical Illness:<\/strong> Sepsis, massive trauma, severe burns, or prolonged surgery.<\/li>\n\n\n\n<li class=\"\"><strong>Obstructive Sleep Apnea (OSA):<\/strong> The repetitive hypoxic stress leads to sustained sympathetic overactivity.<\/li>\n\n\n\n<li class=\"\"><strong>Metabolic Crises:<\/strong> Diabetic ketoacidosis (DKA) or severe hypoglycemia.<\/li>\n\n\n\n<li class=\"\"><strong>Withdrawal Syndromes:<\/strong> Rebound hypertension from the abrupt cessation of clonidine, or severe alcohol withdrawal.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. Pharmacological Causes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Medications are the most common cause of false-positive results, either by physiologically increasing catecholamine levels or by interfering directly with the laboratory assay (though modern assays have reduced analytical interference).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Antidepressants:<\/strong> SNRIs (e.g., venlafaxine, duloxetine), Tricyclic Antidepressants (TCAs), and MAO Inhibitors.<\/li>\n\n\n\n<li class=\"\"><strong>Sympathomimetics:<\/strong> Pseudoephedrine, albuterol, amphetamines, and illicit substances like cocaine.<\/li>\n\n\n\n<li class=\"\"><strong>Parkinson&#8217;s Medications:<\/strong> Levodopa can cause significant elevations in both plasma and urine metanephrines.<\/li>\n\n\n\n<li class=\"\"><strong>Antihypertensives:<\/strong> Alpha-blockers (like phenoxybenzamine) and direct vasodilators can cause reflex sympathetic activation.<\/li>\n\n\n\n<li class=\"\"><strong>Assay Interferences:<\/strong> High doses of acetaminophen, buspirone, or labetalol (which can falsely elevate normetanephrine levels in older HPLC assays).<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Elevated 24-hour urine fractionated metanephrines (metanephrine and normetanephrine) indicate a hyperadrenergic state. Most commonly these elevations are looked for when working up secondary hypertension, but the differential spans tumors, severe physiological stress, and pharmacological effects. 1. Catecholamine-Secreting Tumors These are the primary pathological targets when ordering this assay. Tumors typically cause elevations greater than 2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23751,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-23748","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Urine Metanephrines Elevation: Key Conditions - All About Heart And Blood Vessels<\/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:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Urine Metanephrines Elevation: Key Conditions - All About Heart And Blood Vessels\" \/>\n<meta property=\"og:description\" content=\"Elevated 24-hour urine fractionated metanephrines (metanephrine and normetanephrine) indicate a hyperadrenergic state. Most commonly these elevations are looked for when working up secondary hypertension, but the differential spans tumors, severe physiological stress, and pharmacological effects. 1. Catecholamine-Secreting Tumors These are the primary pathological targets when ordering this assay. Tumors typically cause elevations greater than 2 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/\" \/>\n<meta property=\"og:site_name\" content=\"All About Heart And Blood Vessels\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-25T15:22:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-25T15:22:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2026\/06\/Urine-Metanephrines-Elevation-Key-Conditions.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1281\" \/>\n\t<meta property=\"og:image:height\" content=\"719\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#\\\/schema\\\/person\\\/f35ea33ecf9c9923597de2691ebed1a7\"},\"headline\":\"Urine Metanephrines Elevation: Key Conditions\",\"datePublished\":\"2026-06-25T15:22:33+00:00\",\"dateModified\":\"2026-06-25T15:22:45+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/\"},\"wordCount\":281,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Urine-Metanephrines-Elevation-Key-Conditions.jpg\",\"articleSection\":[\"General\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/\",\"name\":\"Urine Metanephrines Elevation: Key Conditions - All About Heart And Blood Vessels\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Urine-Metanephrines-Elevation-Key-Conditions.jpg\",\"datePublished\":\"2026-06-25T15:22:33+00:00\",\"dateModified\":\"2026-06-25T15:22:45+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#\\\/schema\\\/person\\\/f35ea33ecf9c9923597de2691ebed1a7\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#primaryimage\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Urine-Metanephrines-Elevation-Key-Conditions.jpg\",\"contentUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Urine-Metanephrines-Elevation-Key-Conditions.jpg\",\"width\":1281,\"height\":719},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/urine-metanephrines-elevation-key-conditions\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Urine Metanephrines Elevation: Key Conditions\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#website\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/\",\"name\":\"All About Heart And Blood Vessels\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#\\\/schema\\\/person\\\/f35ea33ecf9c9923597de2691ebed1a7\",\"name\":\"Johnson Francis\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"caption\":\"Johnson Francis\"},\"description\":\"Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/author\\\/jf\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Urine Metanephrines Elevation: Key Conditions - All About Heart And Blood Vessels","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/","og_locale":"en_US","og_type":"article","og_title":"Urine Metanephrines Elevation: Key Conditions - All About Heart And Blood Vessels","og_description":"Elevated 24-hour urine fractionated metanephrines (metanephrine and normetanephrine) indicate a hyperadrenergic state. Most commonly these elevations are looked for when working up secondary hypertension, but the differential spans tumors, severe physiological stress, and pharmacological effects. 1. Catecholamine-Secreting Tumors These are the primary pathological targets when ordering this assay. Tumors typically cause elevations greater than 2 [&hellip;]","og_url":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/","og_site_name":"All About Heart And Blood Vessels","article_published_time":"2026-06-25T15:22:33+00:00","article_modified_time":"2026-06-25T15:22:45+00:00","og_image":[{"width":1281,"height":719,"url":"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2026\/06\/Urine-Metanephrines-Elevation-Key-Conditions.jpg","type":"image\/jpeg"}],"author":"Johnson Francis","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Johnson Francis","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#article","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/"},"author":{"name":"Johnson Francis","@id":"https:\/\/johnsonfrancis.org\/general\/#\/schema\/person\/f35ea33ecf9c9923597de2691ebed1a7"},"headline":"Urine Metanephrines Elevation: Key Conditions","datePublished":"2026-06-25T15:22:33+00:00","dateModified":"2026-06-25T15:22:45+00:00","mainEntityOfPage":{"@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/"},"wordCount":281,"commentCount":0,"image":{"@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2026\/06\/Urine-Metanephrines-Elevation-Key-Conditions.jpg","articleSection":["General"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/","url":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/","name":"Urine Metanephrines Elevation: Key Conditions - All About Heart And Blood Vessels","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/general\/#website"},"primaryImageOfPage":{"@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#primaryimage"},"image":{"@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2026\/06\/Urine-Metanephrines-Elevation-Key-Conditions.jpg","datePublished":"2026-06-25T15:22:33+00:00","dateModified":"2026-06-25T15:22:45+00:00","author":{"@id":"https:\/\/johnsonfrancis.org\/general\/#\/schema\/person\/f35ea33ecf9c9923597de2691ebed1a7"},"breadcrumb":{"@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#primaryimage","url":"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2026\/06\/Urine-Metanephrines-Elevation-Key-Conditions.jpg","contentUrl":"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2026\/06\/Urine-Metanephrines-Elevation-Key-Conditions.jpg","width":1281,"height":719},{"@type":"BreadcrumbList","@id":"https:\/\/johnsonfrancis.org\/general\/urine-metanephrines-elevation-key-conditions\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/johnsonfrancis.org\/general\/"},{"@type":"ListItem","position":2,"name":"Urine Metanephrines Elevation: Key Conditions"}]},{"@type":"WebSite","@id":"https:\/\/johnsonfrancis.org\/general\/#website","url":"https:\/\/johnsonfrancis.org\/general\/","name":"All About Heart And Blood Vessels","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/johnsonfrancis.org\/general\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/johnsonfrancis.org\/general\/#\/schema\/person\/f35ea33ecf9c9923597de2691ebed1a7","name":"Johnson Francis","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","caption":"Johnson Francis"},"description":"Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal","url":"https:\/\/johnsonfrancis.org\/general\/author\/jf\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/posts\/23748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/comments?post=23748"}],"version-history":[{"count":3,"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/posts\/23748\/revisions"}],"predecessor-version":[{"id":23752,"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/posts\/23748\/revisions\/23752"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/media\/23751"}],"wp:attachment":[{"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/media?parent=23748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/categories?post=23748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/general\/wp-json\/wp\/v2\/tags?post=23748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}