{"id":1081,"date":"2011-05-10T17:18:24","date_gmt":"2011-05-10T15:18:24","guid":{"rendered":"https:\/\/folin.nu\/blog\/?p=1081"},"modified":"2011-05-10T17:18:24","modified_gmt":"2011-05-10T15:18:24","slug":"om-bensoylekgonin-testets-tillforlitlighet","status":"publish","type":"post","link":"https:\/\/folin.nu\/blog\/2011\/05\/10\/om-bensoylekgonin-testets-tillforlitlighet\/","title":{"rendered":"Om bensoylekgonin-testets tillf\u00f6rlitlighet"},"content":{"rendered":"<p>I s\u00f6ndags skrev jag lite om <a href=\"https:\/\/folin.nu\/blog\/2011\/05\/08\/inte-sakert-att-ola-lindholm-har-ljugit\/\">andra t\u00e4nkbara f\u00f6rklaringar<\/a> till att Ola Lindholms bensoylekgoninprov var positivt. Nu har jag hittat lite mer information om f\u00f6rklaringen att antibiotikan amoxicillin ocks\u00e5 kan ge upphov till bensoylekgoninf\u00f6rekomst i urin. Det \u00e4r en artikel fr\u00e5n <a href=\"http:\/\/www.jatox.com\/index.php\/vmchk.html\">Journal of Analytical Toxicology<\/a> med det, tycker jag, missvisande namnet &#8221;<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/18430300\">Failure of amoxicillin to produce false-positive urine screens for cocaine metabolite<\/a>&#8221;.<br \/>\nAnledningen till att jag tycker att det \u00e4r missvisande \u00e4r f\u00f6ljande:<\/p>\n<ul>\n<li>I studien som beskrivs deltog 33 personer, som alla fick amoxicillin.<\/li>\n<li>Tv\u00e5 personer testade d\u00e4refter positivt i fyra olika test f\u00f6r bensoylekgonin.<\/li>\n<li>Tre personer hade f\u00f6rh\u00f6jda halter av bensoylekgonin, men inte tillr\u00e4ckligt f\u00f6r att betecknas som ett positivt prov (gr\u00e4nsen gick vid 150 ng\/mL).<\/li>\n<\/ul>\n<p>Av 33 personer hade allts\u00e5 fem f\u00f6rh\u00f6jda halter av bensoylekgonin i urinen. Det \u00e4r ungef\u00e4r 15 procent. Nu \u00e4r omfattningen av studien begr\u00e4nsad, men den som p\u00e5st\u00e5r att amoxicillin inte <em>kan<\/em> ge upphov till falska positiva testresultat f\u00f6r kokain f\u00e5r inget st\u00f6d h\u00e4r. Titeln p\u00e5 artikeln st\u00e4mmer heller inte \u00f6verens med f\u00f6rfattarnas sammanfattning:<\/p>\n<blockquote><p>Within the limitations of the study design, we conclude that amoxicillin is <em>unlikely<\/em> to produce false-positive urine screens for cocaine metabolites. (min markering)<\/p><\/blockquote>\n<p>Ja, enligt studien \u00e4r sannolikheten att amoxicillin ger ett negativt testresultat f\u00f6r bensoylekgonin st\u00f6rre \u00e4n sannolikheten f\u00f6r ett positivt resultat. Men att ett prov som ska ta reda p\u00e5 om man har intagit en illegal substans har fel i femton procent av fallen, om man g\u00e5r p\u00e5 amoxicillin, k\u00e4nns inte s\u00e4rskilt r\u00e4ttss\u00e4kert. S\u00e4rskilt inte n\u00e4r <a href=\"http:\/\/www.aftonbladet.se\/nyheter\/article12996502.ab\">poliser skrattar \u00e5t den som ifr\u00e5gas\u00e4tter testresultaten<\/a>.<\/p>\n<p>L\u00e4s \u00e4ven andra <a href=\"http:\/\/intressant.se\/intressant\">bloggares \u00e5sikter<\/a> om <a href=\"http:\/\/bloggar.se\/om\/bensoylekgonin\" rel=\"tag\">bensoylekgonin<\/a>, <a href=\"http:\/\/bloggar.se\/om\/kokain\" rel=\"tag\">kokain<\/a>, <a href=\"http:\/\/bloggar.se\/om\/ola+lindholm\" rel=\"tag\">ola lindholm<\/a>, <a href=\"http:\/\/bloggar.se\/om\/r%E4ttss%E4kerhet\" rel=\"tag\">r\u00e4ttss\u00e4kerhet<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I s\u00f6ndags skrev jag lite om andra t\u00e4nkbara f\u00f6rklaringar till att Ola Lindholms bensoylekgoninprov var positivt. Nu har jag hittat lite mer information om f\u00f6rklaringen att antibiotikan amoxicillin ocks\u00e5 kan ge upphov till bensoylekgoninf\u00f6rekomst i urin. Det \u00e4r en artikel fr\u00e5n Journal of Analytical Toxicology med det, tycker jag, missvisande namnet &#8221;Failure of amoxicillin to &hellip; <a href=\"https:\/\/folin.nu\/blog\/2011\/05\/10\/om-bensoylekgonin-testets-tillforlitlighet\/\" class=\"more-link\">Forts\u00e4tt l\u00e4sa <span class=\"screen-reader-text\">Om bensoylekgonin-testets tillf\u00f6rlitlighet<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,8,21],"tags":[],"class_list":["post-1081","post","type-post","status-publish","format-standard","hentry","category-integritet","category-juridik","category-vetenskap"],"_links":{"self":[{"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/posts\/1081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/comments?post=1081"}],"version-history":[{"count":5,"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/posts\/1081\/revisions"}],"predecessor-version":[{"id":1086,"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/posts\/1081\/revisions\/1086"}],"wp:attachment":[{"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/media?parent=1081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/categories?post=1081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/folin.nu\/blog\/wp-json\/wp\/v2\/tags?post=1081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}