{"id":2174,"date":"2022-08-04T17:20:57","date_gmt":"2022-08-04T05:20:57","guid":{"rendered":"https:\/\/www.awanuilabs.co.nz\/south\/otagosouthland\/?page_id=2174"},"modified":"2022-08-04T17:24:30","modified_gmt":"2022-08-04T05:24:30","slug":"catheter-associated-urinary-tract-infection","status":"publish","type":"page","link":"https:\/\/www.awanuilabs.co.nz\/south\/otagosouthland\/referrers\/microbiology-resources\/how-do-i-diagnose\/catheter-associated-urinary-tract-infection\/","title":{"rendered":"Catheter-associated urinary tract infection"},"content":{"rendered":"\n<p><strong>Infection:<\/strong> Catheter-associated urinary tract infection (CAUTI)<\/p>\n\n\n\n<p>Also refer to: <a href=\"https:\/\/www.awanuilabs.co.nz\/south\/otagosouthland\/referrers\/microbiology-resources\/best-use-of-common-tests\/\">Urine culture test information<\/a><\/p>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Brief descriptions:<\/summary><div class=\"ab-accordion-text\">\n<ul><li>UTI that occurs in patients with indwelling urinary catheters, or who have had them recently removed.<\/li><li>Usually presents with non-specific signs and symptoms, so can be difficult to diagnose.<\/li><\/ul>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Did you know?<\/summary><div class=\"ab-accordion-text\">\n<p>Urine culture results from people who have an existing catheter are almost impossible to interpret because you cannot differentiate between catheter colonisation (essentially universal), asymptomatic bacteriuria, and UTI.<\/p>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\">Diagnostic approach:<\/summary><div class=\"ab-accordion-text\">\n<ul><li>Test for CAUTI in catheterised patients with <strong>clinical features<\/strong> suggestive of UTI without an obvious alternate cause.<ul><li>These features are often <strong>non-specific<\/strong> e.g. fever, generally unwell.<\/li><\/ul><\/li><\/ul>\n\n\n\n<ul><li>Patients with existing catheters will commonly have cloudy, smelly, or sedimented urine, or a positive dipstick for leucocytes or nitrites.<ul><li><strong>None of these are diagnostic of UTI<\/strong> or a reason to send urine for culture in themselves \u2013 the patient must have <strong>clinical features<\/strong> that raise suspicion of infection.<\/li><\/ul><ul><li>However, a <strong>negative dipstick<\/strong> for leucocytes and nitrites does mean CAUTI is <strong>unlikely<\/strong>.<\/li><\/ul><\/li><\/ul>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\"><strong>Test of choice:<\/strong><\/summary><div class=\"ab-accordion-text\">\n<p><strong>Urine sample <\/strong>for<strong> culture \u2013 <\/strong>either<strong> MSU <\/strong>or from<strong> freshly replaced catheter<\/strong><\/p>\n\n\n\n<ul><li>Because urine cultures from existing catheters are so difficult to interpret, if CAUTI is suspected it is recommended to remove catheter colonisation from the equation. Either:<ul><li>Remove catheter and obtain <strong>MSU sample<\/strong>, or;<\/li><\/ul><ul><li><strong>Replace catheter <\/strong>(usually part of CAUTI management anyway) and obtain urine from <strong>freshly inserted catheter<\/strong><ul><li>It is important to <strong>state on the lab request form<\/strong> if urine has been obtained from a fresh catheter, as the lab will treat this differently.<\/li><\/ul><\/li><\/ul><\/li><\/ul>\n\n\n\n<ul><li>If the patient is systemically unwell then 2 sets of <strong>blood cultures<\/strong> should also be collected.<\/li><\/ul>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-accordion ab-block-accordion\"><details><summary class=\"ab-accordion-title\"><strong>Tests to avoid\/specialist tests:<\/strong><\/summary><div class=\"ab-accordion-text\">\n<p><strong>Sending urine for culture in patients without clinical features of infection<\/strong><\/p>\n\n\n\n<ul><li>This is a common cause of unnecessary antibiotic treatment.<\/li><li>This includes cloudy, smelly, or sedimented urine without other features.<\/li><li>This includes positive dipstick for leucocytes or nitrites without other features.<\/li><\/ul>\n<\/div><\/details><\/div>\n","protected":false},"excerpt":{"rendered":"Infection: Catheter-associated urinary tract infection (CAUTI) Also refer to: Urine culture test information","protected":false},"author":18,"featured_media":0,"parent":2060,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-left-sidebar.php","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Catheter-associated urinary tract infection &#8212; 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