{"id":9941,"date":"2026-10-09T15:00:00","date_gmt":"2026-10-09T15:00:00","guid":{"rendered":"https:\/\/bioprofile.com\/?page_id=9941"},"modified":"2026-10-09T15:24:39","modified_gmt":"2026-10-09T15:24:39","slug":"harnstoff","status":"publish","type":"page","link":"https:\/\/bioprofile.com\/de\/biomarkers\/harnstoff\/","title":{"rendered":"Harnstoff"},"content":{"rendered":"\n<div id=\"content\" tabindex=\"-1\"><\/div>\n<style>@import url('https:\/\/fonts.googleapis.com\/css2?family=Poppins:ital,wght@0,400;0,600;0,700;0,800;1,400&display=swap');\n\/* ===========================================================================\n   BioProfile advertorial, the design Jesse approved on 2026-07-30, expressed\n   as a WordPress design system.\n\n   THE @import IS LOAD BEARING and must stay the first thing in this sheet (a\n   CSS @import after any rule is dropped by the parser). elementor_canvas does\n   not enqueue the theme's fonts, so without it the whole page falls back to the\n   system font. Caught by LOOKING at the live page on 2026-07-30, right after\n   the template was switched to canvas.\n\n   Everything is scoped to `.bp-adv`, so nothing here can reach the rest of\n   bioprofile.com, and core blocks are styled BY ELEMENT so a heading, a\n   paragraph, a quote, a list, an image or a button inserted by hand inside the\n   advertorial comes out on-design with no class to remember.\n\n   Jesse's design feedback, 2026-07-29 23:38, point by point:\n   1. the light green and the dark green are the preferred colours; grey may be\n      used but the page must NOT open grey;\n   2. more colour and variation across sections, e.g. a colour block on the left\n      or the right side of a section, without overdesign;\n   3. ONE H1, plain text on white; everything else H2 or H3; an H2 may carry its\n      own background colour so the page can be read from the headings alone; an\n      H3 keeps its section background and gets a bigger font size;\n   4. reuse the results page design feel;\n   5. Written by \/ Verified by, the placeholder blocks and noindex stay.\n\n   COLOUR PROVENANCE. Not one hex is invented.\n   - #b7cb32  LIGHT GREEN, brand manual \"colours rejuvenation protocol\"\n              (R183 G203 B51). Same value as --bp-lime in\n              brands\/bioprofile\/brand\/tokens.md.\n   - #006b62  DARK GREEN, brand manual, nourish the cells (R0 G107 B98).\n   - #005859  brand manual primary teal, the value the brand is built on.\n   - #228a62  brand manual, challenge the body (R34 G138 B98).\n   - #7ca64c  brand manual, calm the mind (R124 G166 B76).\n   - #dbd4cd  brand manual \"additional color\", the warm neutral.\n   - #B7CB3329 is the brand token --bp-lime-soft (light green at 16 percent).\n   - the gradients are the brand token layer's own, copied verbatim.\n\n   SPECIFICITY NOTE. Elementor's global kit emits `.elementor-kit-6 h2` style\n   rules at (0,1,1). Element rules below are written `.bp-adv h2`, also (0,1,1),\n   and win on source order because this sheet is inline in the body while the\n   kit is a <link> in the head. Component rules that MUST NOT lose carry two\n   classes, e.g. `.bp-adv .wp-block-button__link`.\n\n   LAYOUT NOTE. Vertical rhythm uses `margin-block` and never the `margin`\n   shorthand, so the measure rule `.bp-adv-sec > * { margin-inline: auto }` can\n   centre a block without being outranked by its own element rule.\n   =========================================================================== *\/\n\n.bp-adv {\n  --bp-ink: #212527;\n  --bp-teal: #005859;\n  --bp-forest: #006B62;\n  --bp-emerald: #228A62;\n  --bp-olive: #7CA64C;\n  --bp-lime: #B7CB33;\n  --bp-lime-soft: #B7CB3329;\n  --bp-sand: #DBD4CB;\n  --bp-white: #FFFFFF;\n  --bp-foot: #6b6b6b;\n  --bp-grad-dark: linear-gradient(237deg, rgba(0,88,89,0.00) 62.94%, #005859 100%), linear-gradient(90deg, rgba(34,138,98,0.00) 40%, #228A62 100%), #006B62;\n  --bp-grad-lime: linear-gradient(110deg, rgba(183,203,51,0.00) 36.06%, rgba(183,203,51,0.25) 97.65%), #FFFFFF;\n  --bp-font: 'Poppins','Segoe UI',Arial,sans-serif;\n  --bp-fs-h1: 44px; --bp-fs-h2: 31px; --bp-fs-h3: 24px; --bp-fs-pre: 15px;\n  --bp-fs-body: 17px; --bp-fs-small: 14px; --bp-fs-foot: 13px; --bp-fs-btn: 17px;\n  --bp-lh-body: 1.75;\n  --bp-s-1: 4px; --bp-s-2: 8px; --bp-s-3: 12px; --bp-s-4: 16px;\n  --bp-s-5: 24px; --bp-s-6: 32px; --bp-s-7: 44px; --bp-s-8: 72px;\n  --bp-measure: 760px; --bp-side: 40px;\n  --bp-radius-photo: 16px; --bp-radius-btn: 10px; --bp-radius-card: 20px;\n  --bp-shadow: 0 10px 30px rgba(0,88,89,0.10);\n  font-family: var(--bp-font);\n  font-size: var(--bp-fs-body);\n  line-height: var(--bp-lh-body);\n  color: var(--bp-ink);\n  background: var(--bp-white);\n  -webkit-font-smoothing: antialiased;\n}\n.bp-adv, .bp-adv * { box-sizing: border-box; }\n.bp-adv p, .bp-adv li, .bp-adv h1, .bp-adv h2, .bp-adv h3, .bp-adv blockquote,\n.bp-adv a, .bp-adv cite, .bp-adv span { overflow-wrap: break-word; min-width: 0; }\n\n\/* THE TOGGLE. One word in the block's own \"Additional CSS class(es)\" field\n   hides an optional component on the front end without deleting anything. *\/\n.bp-adv .bp-off { display: none !important; }\n\n\/* the page opens on green, never on grey (his point 1) *\/\n.bp-adv .bp-adv-rule {\n  height: 6px; border: 0; margin-block: 0; max-width: none;\n  background: linear-gradient(90deg, #005859 0%, #006B62 38%, #228A62 66%, #B7CB33 100%);\n}\n\n\/* --- section surfaces ------------------------------------------------------ *\/\n.bp-adv-sec { position: relative; background: var(--bp-white);\n  padding: var(--bp-s-8) var(--bp-side); margin-block: 0; }\n\/* the measure: every direct child of a section is the 760px text column *\/\n.bp-adv-sec > * { max-width: var(--bp-measure); margin-inline: auto; }\n.bp-adv-sec > *:last-child { margin-block-end: 0; }\n.bp-adv-sec--wash  { background: linear-gradient(180deg, #B7CB331F 0%, #B7CB3312 100%), #FFFFFF; }\n.bp-adv-sec--dark  { background: var(--bp-grad-dark); color: var(--bp-white); }\n.bp-adv-sec--dark p, .bp-adv-sec--dark cite, .bp-adv-sec--dark li { color: var(--bp-white); }\n.bp-adv-sec--offer { background: var(--bp-grad-lime); text-align: center; }\n.bp-adv-sec--hero  { padding-block-start: var(--bp-s-6); }\n.bp-adv-sec--disclosure { padding-block: var(--bp-s-6);\n  border-top: 1px solid var(--bp-sand); }\n\n\/* --- the side accent bar, his own example (\"a colour block on the left or the\n       right side of a section\"), design rev 3: a slim vertical bar hugging the\n       text column rather than a wide margin panel. Below 1100px the margin is\n       gone, so it becomes a slim top edge. ---------------------------------- *\/\n.bp-adv-rail { overflow: hidden; }\n.bp-adv-rail::before {\n  content: \"\"; position: absolute; top: var(--bp-s-7); bottom: var(--bp-s-7);\n  width: 6px; border-radius: 3px;\n  background: linear-gradient(180deg, var(--bp-forest) 0%, var(--bp-lime) 100%);\n}\n.bp-adv-rail--left::before  { left: calc((100% - var(--bp-measure)) \/ 2 - 34px); }\n.bp-adv-rail--right::before { right: calc((100% - var(--bp-measure)) \/ 2 - 34px); }\n@media (max-width: 1099px) {\n  .bp-adv-rail::before { left: 0; right: 0; width: auto; bottom: auto; top: 0;\n    height: 4px; border-radius: 0; background: var(--bp-lime); }\n}\n\n\/* --- CORE BLOCKS, styled by element. This is the part that makes an inserted\n       block come out on-design with no class. --------------------------------- *\/\n.bp-adv p { font-size: var(--bp-fs-body); line-height: var(--bp-lh-body);\n  margin-block: 0 var(--bp-s-5); }\n.bp-adv h1 { font-size: var(--bp-fs-h1); font-weight: 700; line-height: 1.22;\n  margin-block: 0 var(--bp-s-4); }\n\/* an H2 is its own colour band, so the page can be read from the headings\n   alone (his point 3). Dark green on light sections, light green on the dark\n   one, so a heading always wins against its own background. *\/\n.bp-adv h2 {\n  font-size: var(--bp-fs-h2); font-weight: 700; line-height: 1.28;\n  margin-block: 0 var(--bp-s-5);\n  background: var(--bp-grad-dark); color: var(--bp-white);\n  padding: var(--bp-s-4) var(--bp-s-5);\n  border-radius: var(--bp-radius-btn);\n  border-left: 6px solid var(--bp-lime);\n}\n.bp-adv-sec--dark h2 { background: var(--bp-lime); color: var(--bp-ink);\n  border-left-color: var(--bp-forest); }\n\/* H3: same background as its section, bigger font (his point 3, verbatim) *\/\n.bp-adv h3 { font-size: var(--bp-fs-h3); font-weight: 700; line-height: 1.35;\n  color: var(--bp-forest); background: transparent; margin-block: 0 var(--bp-s-3); }\n.bp-adv-sec--dark h3 { color: var(--bp-lime); }\n.bp-adv ul, .bp-adv ol { font-size: var(--bp-fs-body); line-height: var(--bp-lh-body);\n  margin-block: 0 var(--bp-s-5); padding-left: var(--bp-s-5); }\n.bp-adv li { margin-block-end: var(--bp-s-2); }\n.bp-adv a { color: var(--bp-teal); text-decoration: underline; }\n.bp-adv a:hover { color: var(--bp-olive); }\n.bp-adv-sec--dark a, .bp-adv-sec--dark strong { color: var(--bp-lime); }\n.bp-adv strong { font-weight: 700; }\n\/* the highlight pill. Colours ride on the inline style core writes, so only\n   the shape lives here and any <mark> in the article picks it up. *\/\n.bp-adv mark {\n  padding: 0 10px; border-radius: 10px; display: inline;\n  -webkit-box-decoration-break: clone; box-decoration-break: clone;\n}\n\/* figures match the approved page exactly: card radius plus the soft shadow,\n   and a left-aligned caption rather than core's centred one *\/\n.bp-adv .wp-block-image { margin-block: var(--bp-s-5); margin-inline: auto; }\n.bp-adv .wp-block-image img { display: block; width: 100%; height: auto;\n  border-radius: var(--bp-radius-card); box-shadow: var(--bp-shadow); }\n.bp-adv .wp-block-image figcaption { font-size: var(--bp-fs-foot); line-height: 1.55;\n  color: var(--bp-foot); text-align: left; margin-block: var(--bp-s-2) 0; }\n.bp-adv .wp-block-embed, .bp-adv .wp-block-video { margin-block: var(--bp-s-5); }\n.bp-adv .wp-block-embed iframe, .bp-adv .wp-block-video video {\n  width: 100%; border-radius: var(--bp-radius-photo); }\n.bp-adv .wp-block-separator:not(.bp-adv-rule) { border: 0; border-top: 1px solid var(--bp-sand);\n  margin-block: var(--bp-s-5); }\n\n\/* quotes: core pullquote and core quote both land on the lime rule. The\n   font-size reset undoes core's own 1.5em on the figure, which would otherwise\n   leak into anything inside the quote that has no size of its own. *\/\n\/* margin-inline is load bearing, and it must be `auto` rather than `0`.\n   `blockquote` and `figure` carry a 40px side margin in the browser's own\n   default stylesheet, which indents the quote inside its rule and makes the\n   copy wrap early on a phone. But these blocks are direct children of a\n   section, so zeroing the side margin also defeats the measure rule\n   `.bp-adv-sec > * { margin-inline: auto }` and pins them to the left edge. *\/\n.bp-adv .wp-block-pullquote, .bp-adv .wp-block-quote {\n  border: 0; border-left: 5px solid var(--bp-lime); background: transparent;\n  padding: var(--bp-s-2) 0 var(--bp-s-2) var(--bp-s-5);\n  margin-block: var(--bp-s-5); margin-inline: auto;\n  text-align: left; font-size: var(--bp-fs-body);\n}\n.bp-adv .wp-block-pullquote blockquote { border: 0; margin: 0; padding: 0; }\n.bp-adv .wp-block-pullquote p, .bp-adv .wp-block-quote p {\n  font-size: 24px; line-height: 1.45; font-weight: 600;\n  margin-block: 0 var(--bp-s-2); color: var(--bp-forest); }\n.bp-adv .wp-block-pullquote cite, .bp-adv .wp-block-quote cite {\n  display: block; margin: 0; font-size: var(--bp-fs-small); color: var(--bp-foot);\n  font-style: normal; text-transform: none; }\n\n\/* buttons: two classes so core's own .wp-block-button__link cannot win *\/\n.bp-adv .wp-block-buttons { display: flex; justify-content: center;\n  margin-block: 0 var(--bp-s-4); }\n.bp-adv .wp-block-button__link {\n  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;\n  background: var(--bp-teal); color: var(--bp-white); font-size: var(--bp-fs-btn);\n  font-weight: 700; line-height: 1.2; border-radius: var(--bp-radius-btn);\n  padding: 15px 44px; text-decoration: none; transition: background 250ms ease;\n  box-shadow: var(--bp-shadow);\n}\n.bp-adv .wp-block-button__link:hover { background: var(--bp-olive); color: var(--bp-white); }\n\n\/* --- slot 1: pre-headline, headline, sub-headline (Jesse's headline skill) --- *\/\n.bp-adv .bp-adv-preheadline {\n  color: var(--bp-forest); font-size: var(--bp-fs-pre); font-weight: 600; line-height: 1.5;\n  border-left: 4px solid var(--bp-lime); padding-left: var(--bp-s-3);\n  margin-block: 0 var(--bp-s-4);\n}\n.bp-adv .bp-adv-subheadline { font-size: 21px; line-height: 1.5; font-weight: 600;\n  color: var(--bp-forest); margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-standfirst { font-size: 19px; line-height: 1.65;\n  margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-lede { font-size: 18px; line-height: 1.7;\n  margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-byline { font-size: var(--bp-fs-small); color: var(--bp-foot);\n  line-height: 1.6; margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-socialproof { font-size: var(--bp-fs-small); color: var(--bp-foot);\n  margin-block: 0 var(--bp-s-5); }\n\/* the offer headline above the CTA. Jesse asked for a second H1 here; the brand\n   doc's accessibility rule is one h1 per page, so it is rendered at H1 size and\n   stays an h2 element. Named in the close as the one design conflict. *\/\n.bp-adv h2.bp-adv-offerhead {\n  font-size: var(--bp-fs-h1); font-weight: 700; line-height: 1.22;\n  margin-block: 0 var(--bp-s-4); text-align: center; color: var(--bp-ink);\n  background: none; padding: 0; border: 0; border-radius: 0;\n}\n\n\/* --- Written by + Verified by. The avatar is the first child and spans the\n       three text rows, so the whole box is four ordinary paragraphs and stays\n       editable without nested columns. ---------------------------------------- *\/\n.bp-adv .bp-adv-authors {\n  background: var(--bp-white); border: 1px solid var(--bp-sand);\n  border-top: 4px solid var(--bp-lime); border-radius: var(--bp-radius-card);\n  box-shadow: var(--bp-shadow); padding: var(--bp-s-5);\n  margin-block: 0 var(--bp-s-4);\n  \/* auto-fit, so switching the verified box off leaves one full-width author\n     rather than a half-empty card *\/\n  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));\n  gap: var(--bp-s-5); align-items: start;\n}\n.bp-adv .bp-adv-author {\n  display: grid; grid-template-columns: 62px 1fr; gap: 0 var(--bp-s-3);\n  align-items: start; min-width: 0;\n}\n.bp-adv .bp-adv-avatar {\n  grid-row: 1 \/ span 3; width: 62px; height: 62px; border-radius: 50%;\n  background: #B7CB331F; border: 2px dashed var(--bp-olive);\n  display: flex; align-items: center; justify-content: center;\n  font-size: 10px; font-weight: 700; letter-spacing: 0.06em; color: var(--bp-forest);\n  margin-block: 0;\n}\n.bp-adv .bp-adv-author.is-placeholder .bp-adv-avatar {\n  border-color: var(--bp-sand); background: #fff; color: var(--bp-foot); }\n.bp-adv .bp-adv-author-role {\n  font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;\n  color: var(--bp-forest); line-height: 1.6; margin-block: 0; }\n.bp-adv .bp-adv-author.is-placeholder .bp-adv-author-role { color: var(--bp-foot); }\n.bp-adv .bp-adv-author-name { font-size: 17px; font-weight: 700; line-height: 1.35;\n  margin-block: 0; }\n.bp-adv .bp-adv-author-cred { font-size: var(--bp-fs-foot); color: var(--bp-foot);\n  line-height: 1.55; margin-block: 0; }\n\/* the optional wrapper must not break the two-column grid of the box *\/\n.bp-adv .bp-adv-authors > .bp-optional { display: contents; }\n.bp-adv .bp-adv-authors > .bp-optional.bp-off { display: none !important; }\n\n\/* --- placeholders: image slot, video slot ---------------------------------- *\/\n.bp-adv .bp-slot {\n  display: flex; align-items: center; justify-content: center; text-align: center;\n  min-height: 180px; padding: var(--bp-s-4); margin-block: var(--bp-s-5) 0;\n  border: 2px dashed var(--bp-olive); border-radius: var(--bp-radius-photo);\n  background: #B7CB331F; color: var(--bp-forest);\n}\n.bp-adv .bp-slot p { font-size: var(--bp-fs-small); font-weight: 700; margin-block: 0; }\n.bp-adv .bp-slot--video { min-height: 260px; }\n\n\/* --- mid-article CTA band --------------------------------------------------- *\/\n.bp-adv .bp-adv-midcta {\n  background: var(--bp-grad-lime); border: 1px solid var(--bp-lime);\n  border-radius: var(--bp-radius-card); padding: var(--bp-s-5) var(--bp-s-4);\n  margin-block: var(--bp-s-6); text-align: center;\n}\n.bp-adv .bp-adv-midcta .wp-block-buttons { margin-block-end: var(--bp-s-2); }\n.bp-adv .bp-adv-midcta .bp-adv-foot { margin-block: 0; }\n\n\/* the closing CTA is one named unit in List View, so it moves and toggles as a\n   whole. It carries no box of its own: the spacing must read exactly as it does\n   on the approved page, where the three parts are plain siblings. *\/\n.bp-adv .bp-adv-ctablock { margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-ctablock .wp-block-buttons { margin-block-end: var(--bp-s-4); }\n.bp-adv .bp-adv-ctablock .bp-adv-foot { margin-block: 0; }\n\n\/* --- the condition, slot 8: the results page reference-card shape ----------- *\/\n.bp-adv .bp-adv-condition {\n  background: var(--bp-white); border: 1px solid var(--bp-sand);\n  border-left: 5px solid var(--bp-lime); border-radius: var(--bp-radius-btn);\n  padding: var(--bp-s-4) var(--bp-s-5); font-weight: 600; box-shadow: var(--bp-shadow);\n}\n\n\/* --- the numbers card: the results page focus panel, same gradient, same\n       radius, same lime figures (\"use more of that design\") ------------------ *\/\n.bp-adv .bp-adv-numcard {\n  background: linear-gradient(135deg, var(--bp-teal) 0%, var(--bp-forest) 100%);\n  border-radius: var(--bp-radius-card);\n  padding: var(--bp-s-6) var(--bp-s-5) var(--bp-s-5);\n  box-shadow: var(--bp-shadow); margin-block: var(--bp-s-5) 0;\n  position: relative; overflow: hidden;\n}\n.bp-adv .bp-adv-numcard::after {\n  content: \"\"; position: absolute; right: -70px; top: -70px; width: 240px; height: 240px;\n  border-radius: 50%; background: rgba(255,255,255,0.05); pointer-events: none;\n}\n.bp-adv .bp-adv-numcard .wp-block-columns {\n  position: relative; z-index: 1; gap: var(--bp-s-5); margin-block: 0; }\n.bp-adv .bp-adv-numcard .wp-block-column { min-width: 0; }\n.bp-adv .bp-adv-num-v { font-size: 44px; font-weight: 700; line-height: 1.12;\n  color: var(--bp-lime); text-align: center; margin-block: 0 var(--bp-s-2); }\n.bp-adv .bp-adv-num-l { font-size: var(--bp-fs-small); line-height: 1.5;\n  color: rgba(255,255,255,0.92); text-align: center; margin-block: 0; }\n.bp-adv .bp-adv-numsrc { margin-block: var(--bp-s-5) 0; }\n\n\/* --- the proof slot: a dashed card until a consented quote exists. 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Helder uitgelegd, met bronnen.\",\"inLanguage\":\"nl-NL\",\"dateModified\":\"2026-10-07\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/bioprofile.com\/biomarkers\/ureum\/\"},\"isPartOf\":{\"@id\":\"https:\/\/bioprofile.com\/biomarkers\/ureum\/\"},\"publisher\":{\"@id\":\"https:\/\/bioprofile.com\/#organization\"},\"about\":{\"@id\":\"https:\/\/bioprofile.com\/biomarkers\/ureum\/#biomarker\"},\"citation\":[{\"@type\":\"CreativeWork\",\"name\":\"MedlinePlus, U.S. National Library of Medicine. BUN (Blood Urea Nitrogen). Geraadpleegd op 7 oktober 2026.\",\"url\":\"https:\/\/medlineplus.gov\/lab-tests\/bun-blood-urea-nitrogen\/\"},{\"@type\":\"CreativeWork\",\"name\":\"Labplusarts, het laboratorium waarmee BioProfile werkt: referentiewaarde bij de bepaling ureum (HST), 2,77 tot 8,1 mmol\/l. Lijst van 24 september 2026.\"},{\"@type\":\"CreativeWork\",\"name\":\"BioProfile, de pakketten van het bloedonderzoek en de waarden in elk pakket.\",\"url\":\"https:\/\/bioprofile.com\/bloedonderzoek\/\"}]},{\"@type\":\"MedicalTest\",\"@id\":\"https:\/\/bioprofile.com\/biomarkers\/ureum\/#biomarker\",\"name\":\"Ureum\",\"alternateName\":[\"Urea\"]}]}<\/script>\n\n\n\n<section class=\"wp-block-group bp-adv bp-biomarker bp-biomarker--page is-layout-flow wp-block-group-is-layout-flow\">\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity bp-adv-rule\"\/>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--hero is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"bp-bm-crumbs wp-block-paragraph\"><a href=\"https:\/\/bioprofile.com\/de\/\">Startseite<\/a> \u203a <a href=\"https:\/\/bioprofile.com\/de\/biomarkers\/\">Biomarker<\/a> \u203a <span>Harnstoff<\/span><\/p>\n\n\n\n<h1 class=\"wp-block-heading bp-adv-h1\">Harnstoff: was Ihr Wert \u00fcber Ihre Nieren aussagt<\/h1>\n\n\n\n<p class=\"bp-adv-standfirst wp-block-paragraph\">Sind Sie \u00e4lter als 60? MedlinePlus nennt das einen Grund, Ihre Nieren untersuchen zu lassen. Eine beginnende Nierenerkrankung verursacht meist keine Beschwerden, und ein Harnstofftest kann ein solches Problem fr\u00fch sichtbar machen.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"bp-adv-lede wp-block-paragraph\">Auf dieser Seite lesen Sie, was Harnstoff ist, was die Leitlinien \u00fcber einen zu niedrigen oder zu hohen Wert sagen, was Ihren Wert beeinflusst und welche Werte Sie am besten daneben legen.<\/p>\n\n\n\n<p class=\"bp-bm-names wp-block-paragraph\">Auch: Urea, Harnstoff-Stickstoff, Blut-Harnstoff-Stickstoff (BUN). Im Labor: HST.<\/p>\n\n\n\n<p class=\"bp-adv-byline wp-block-paragraph\">Aktualisiert am 7. Oktober 2026<\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group bp-bm-toc is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-inhoud\">Auf dieser Seite<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><a href=\"#bp-in-het-kort\">Kurz gefasst<\/a><\/li>\n\n\n<li><a href=\"#bp-wat-is-ureum\">Was ist Harnstoff?<\/a><\/li>\n\n\n<li><a href=\"#bp-waarom-het-ertoe-doet\">Warum Harnstoff wichtig ist<\/a><\/li>\n\n\n<li><a href=\"#bp-wat-je-waarde-zegt\">Was Ihr Harnstoffwert aussagt<\/a><\/li>\n\n\n<li><a href=\"#bp-wat-het-beinvloedt\">Was Ihren Harnstoff beeinflusst<\/a><\/li>\n\n\n<li><a href=\"#bp-welke-pakketten\">Welche BioProfile-Pakete Harnstoff messen<\/a><\/li>\n\n\n<li><a href=\"#bp-waarden-die-erbij-horen\">Werte, die dazugeh\u00f6ren<\/a><\/li>\n\n\n<li><a href=\"#bp-hoe-gemaakt\">Wie diese Seite entstanden ist<\/a><\/li>\n\n\n<li><a href=\"#bp-bronnen\">Quellen<\/a><\/li>\n\n<\/ul>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-in-het-kort\">Kurz gefasst<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Harnstoff ist ein Abfallstoff, der entsteht, wenn Ihr K\u00f6rper Eiwei\u00dfe abbaut, und Ihre Nieren scheiden ihn mit dem Urin aus.<sup>[1]<\/sup><\/li>\n\n\n<li>Ein h\u00f6herer Wert als normal kann auf Nieren hinweisen, die weniger gut arbeiten.<sup>[1]<\/sup><\/li>\n\n\n<li>Ein niedrigerer Wert kann auf zu wenig Eiwei\u00df in der Ern\u00e4hrung, Mangelern\u00e4hrung oder eine Lebererkrankung hinweisen.<sup>[1]<\/sup><\/li>\n\n\n<li>Harnstoff ist nur ein Messwert Ihrer Nierenfunktion, deshalb kann Ihr Arzt Kreatinin und eGFR daneben legen.<sup>[1]<\/sup><\/li>\n\n<\/ul>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-wat-is-ureum\">Was ist Harnstoff?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Harnstoff ist ein Abfallstoff. Er entsteht, wenn Ihr K\u00f6rper Eiwei\u00dfe abbaut. Ihr Blut transportiert ihn zu den Nieren, und diese scheiden ihn aus, wenn Sie Wasser lassen.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Eine kleine Menge Harnstoff im Blut ist normal. Der Test geh\u00f6rt oft zu einer breiteren Reihe von Bluttests f\u00fcr Ihren Stoffwechsel. Sie finden ihn auch unter dem Namen Harnstoff-Stickstoff-Test oder BUN.<sup>[1]<\/sup><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-waarom-het-ertoe-doet\">Warum Harnstoff wichtig ist<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Arbeiten Ihre Nieren weniger gut, kann sich Harnstoff in Ihrem Blut ansammeln. Laut MedlinePlus kann das zu ernsten gesundheitlichen Problemen f\u00fchren, unter anderem zu Blutarmut sowie zu Problemen mit dem Herzen und dem Blutdruck.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Eine beginnende Nierenerkrankung verursacht oft keine Beschwerden. Deshalb kann ein Arzt den Harnstoff bei einer normalen Kontrolle messen lassen oder um zu verfolgen, wie sich ein Wert entwickelt, w\u00e4hrend Ihre Nieren \u00e4rztlich betreut werden.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MedlinePlus nennt auch Gr\u00fcnde, Ihre Nieren untersuchen zu lassen: Nierenprobleme in der Familie, eine Erkrankung des Herzens, Probleme mit dem Blutzucker oder dem Blutdruck, ein Alter \u00fcber 60 und Rauchen.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ihr Arzt kann den Harnstoff auch bei Beschwerden messen, etwa wenn Sie h\u00e4ufig oder gerade wenig Wasser lassen, bei Juckreiz, M\u00fcdigkeit, Schwellungen an Armen, Beinen oder F\u00fc\u00dfen, Muskelkr\u00e4mpfen und schlechtem Schlaf.<sup>[1]<\/sup><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-wat-je-waarde-zegt\">Was Ihr Harnstoffwert aussagt<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Die Richtlinie des Labors<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Labplusarts, das Labor, mit dem BioProfile zusammenarbeitet, verwendet f\u00fcr Harnstoff (HST) einen Referenzwert von 2,77 bis 8,1 mmol\/l. Einen Wert zwischen diesen Grenzen nennt das Labor normal.<sup>[2]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Der Referenzbereich von Labplusarts<\/h3>\n\n\n\n<figure class=\"wp-block-table bp-bm-table\"><table><thead><tr><th>Wert<\/th><th>Was das Labor sagt<\/th><th>F\u00fcr wen<\/th><\/tr><\/thead><tbody><tr><td>2,77 bis 8,1 mmol\/l<sup>[2]<\/sup><\/td><td>Normal laut Labor<\/td><td>Das Labor nennt keine gesonderte Gruppe<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"bp-bm-caption wp-block-paragraph\">Quelle: Labplusarts, das Labor, mit dem BioProfile zusammenarbeitet. Referenzwert f\u00fcr Harnstoff (HST) in diesem Labor.<sup>[2]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Harnstoff zu niedrig<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ein Wert unter dem Normalbereich kann auf zu wenig Eiwei\u00df in der Ern\u00e4hrung, Mangelern\u00e4hrung oder eine Lebererkrankung hinweisen. Was Ihr Ergebnis bedeutet, besprechen Sie mit Ihrem Arzt.<sup>[1]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Harnstoff zu hoch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ein Wert \u00fcber dem Normalbereich kann auf Nieren hinweisen, die weniger gut arbeiten. Weitere m\u00f6gliche Gr\u00fcnde sind zu wenig Fl\u00fcssigkeit im K\u00f6rper, Verbrennungen, bestimmte Medikamente, eine sehr eiwei\u00dfreiche Ern\u00e4hrung oder ein k\u00fcrzlich aufgetretenes akutes Problem mit dem Herzen. Ein abweichendes Ergebnis weist nicht immer auf etwas hin, das \u00e4rztlich versorgt werden muss.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BioProfile arbeitet an eigenen Zonen pro Wert, von Risiko bis optimal. Ein Arzt pr\u00fcft diese Zonen, bevor sie in Ihrem Ergebnis erscheinen.<\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-wat-het-beinvloedt\">Was Ihren Harnstoff beeinflusst<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ern\u00e4hrung<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Essen Sie viel Eiwei\u00df, kann Ihr Harnstoff h\u00f6her ausfallen. Nehmen Sie zu wenig Eiwei\u00df zu sich, kann er niedriger ausfallen.<sup>[1]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fl\u00fcssigkeit<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Haben Sie zu wenig Fl\u00fcssigkeit im K\u00f6rper, kann Ihr Harnstoff steigen.<sup>[1]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Medikamente<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bestimmte Medikamente k\u00f6nnen Ihren Harnstoff erh\u00f6hen. Nehmen Sie Medikamente ein, sagen Sie das Ihrem Arzt, wenn Sie Ihr Ergebnis besprechen.<sup>[1]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Alter und Geschlecht<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Der Harnstoff kann sich zwischen M\u00e4nnern und Frauen unterscheiden. Mit den Jahren steigt er meist an.<sup>[1]<\/sup><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-welke-pakketten\">Welche BioProfile-Pakete Harnstoff messen<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Harnstoff ist in BioProfile 77, 98, 121 und 150 enthalten.<sup>[3]<\/sup><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/bioprofile.com\/de\/blutuntersuchung\/\">Die Pakete ansehen<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-waarden-die-erbij-horen\">Werte, die dazugeh\u00f6ren<\/h2>\n\n\n\n<ul class=\"wp-block-list bp-bm-related\">\n\n<li><strong>eGFR<\/strong>: sch\u00e4tzt, wie gut Ihre Nieren Ihr Blut filtern.<sup>[1]<\/sup><\/li>\n\n\n<li><strong>Kreatinin<\/strong>: ein weiterer Abfallstoff, den Ihre Nieren aus dem K\u00f6rper entfernen. So betrachten Sie Ihre Nierenfunktion von zwei Seiten.<sup>[1]<\/sup><\/li>\n\n\n<li><strong>Eiwei\u00df (Urin)<\/strong>: ein Wert aus Ihrem Urin, den Sie neben den Harnstoff legen k\u00f6nnen, denn Harnstoff ist nur ein Messwert daf\u00fcr, wie Ihre Nieren arbeiten.<sup>[1]<\/sup><\/li>\n\n\n<li><strong>Okkultes Blut (Urin)<\/strong>: eine zus\u00e4tzliche Messung aus Ihrem Urin, denn Harnstoff allein gibt nur einen Blick auf Ihre Nierenfunktion.<sup>[1]<\/sup><\/li>\n\n\n<li><strong>Leukozyten (Urin)<\/strong>: ein weiterer Wert aus Ihrem Urin, den Sie neben den Harnstoff legen k\u00f6nnen, denn Harnstoff ist nur ein Messwert Ihrer Nierenfunktion.<sup>[1]<\/sup><\/li>\n\n<\/ul>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-hoe-gemaakt\">Wie diese Seite entstanden ist<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Die BioProfile-Redaktion hat diese Seite am 7. Oktober 2026 auf Grundlage der unten genannten Quellen verfasst, die wir am 7. Oktober 2026 gelesen haben. Jede Zahl auf dieser Seite steht in einer dieser Quellen, mit der Nummer der jeweiligen Quelle. Eine Fachperson pr\u00fcft diese Seite noch; nach dieser Pr\u00fcfung stehen der Name der Fachperson und das Datum der Pr\u00fcfung oben auf der Seite. Diese Seite erkl\u00e4rt und stellt keine Diagnose. Besprechen Sie einen abweichenden Wert in Ihrer Hausarztpraxis.<\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--disclosure is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-bronnen\">Quellen<\/h2>\n\n\n\n<ol class=\"wp-block-list bp-adv-srclist bp-bm-src\">\n\n<li>MedlinePlus, U.S. National Library of Medicine. BUN (Blood Urea Nitrogen). Abgerufen am 7. Oktober 2026. <a href=\"https:\/\/medlineplus.gov\/lab-tests\/bun-blood-urea-nitrogen\/\" target=\"_blank\" rel=\"noopener\">https:\/\/medlineplus.gov\/lab-tests\/bun-blood-urea-nitrogen\/<\/a><\/li>\n\n\n<li>Labplusarts, das Labor, mit dem BioProfile zusammenarbeitet: Referenzwert bei der Bestimmung Harnstoff (HST), 2,77 bis 8,1 mmol\/l. Liste vom 24. September 2026.<\/li>\n\n\n<li>BioProfile, die Pakete der Blutuntersuchung und die Werte in jedem Paket. <a href=\"https:\/\/bioprofile.com\/de\/blutuntersuchung\/\" target=\"_blank\" rel=\"noopener\">https:\/\/bioprofile.com\/de\/blutuntersuchung\/<\/a><\/li>\n\n<\/ol>\n\n<\/div>\n\n<\/section>\n\n","protected":false},"excerpt":{"rendered":"<p>Startseite \u203a Biomarker \u203a Harnstoff Harnstoff: was Ihr Wert \u00fcber Ihre Nieren aussagt Sind Sie \u00e4lter als 60? MedlinePlus nennt das einen Grund, Ihre Nieren untersuchen zu lassen. Eine beginnende Nierenerkrankung verursacht meist keine Beschwerden, und ein Harnstofftest kann ein solches Problem fr\u00fch sichtbar machen.[1] Auf dieser Seite lesen Sie, was Harnstoff ist, was die [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"parent":6596,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_yoast_wpseo_title":"Harnstoff im Blut: was Ihr Wert aussagt | BioProfile","_yoast_wpseo_metadesc":"Was ist Harnstoff, worauf kann ein zu niedriger oder zu hoher Wert hinweisen und was beeinflusst Ihren Harnstoff? 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