{"id":5675,"date":"2009-06-12T03:00:00","date_gmt":"2009-06-12T03:00:00","guid":{"rendered":"https:\/\/medicalcriteria.com\/web\/nepharf\/"},"modified":"2025-05-14T19:09:24","modified_gmt":"2025-05-14T19:09:24","slug":"nepharf","status":"publish","type":"post","link":"https:\/\/medicalcriteria.com\/web\/nepharf\/","title":{"rendered":"Guidelines for Urinary Indices in Acute Renal Failure (ARF)"},"content":{"rendered":"<div class=\"99c380e4b4a7b96c35d7ddf7dcb434e8\" data-index=\"1\" style=\"float: none; margin:0px 0 0px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- MC 2019- Horizontal -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-0127150553352455\"\r\n     data-ad-slot=\"3806776041\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Guidelines for urinary indices whereby established Acute Renal Failure (ARF) can be distinguished from renal vasoconstriction with intact tubular function (prerenal azotemia).<\/p>\n<p><!--more--><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\" border=\"1\">\n<tbody>\n<tr>\n<td style=\"width: 34.4322%;\"><strong>Laboratory test<br \/>\n<\/strong><\/td>\n<td style=\"width: 31.5018%;\" align=\"center\"><strong>Prerenal azotemia<br \/>\n<\/strong><\/td>\n<td style=\"width: 33.9438%;\" align=\"center\"><strong> ARF<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 34.4322%;\">Urine osmolality (mOsm\/kg)<\/td>\n<td style=\"width: 31.5018%;\" align=\"center\">&gt;500<\/td>\n<td style=\"width: 33.9438%;\" align=\"center\">&lt;400<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 34.4322%;\">Urine sodium level (mEq\/l)<\/td>\n<td style=\"width: 31.5018%;\" align=\"center\">&lt;20<\/td>\n<td style=\"width: 33.9438%;\" align=\"center\">&gt;40<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 34.4322%;\">Urine\/plasma creatinine ratio<\/td>\n<td style=\"width: 31.5018%;\" align=\"center\">&gt;40<\/td>\n<td style=\"width: 33.9438%;\" align=\"center\">&lt;20<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 34.4322%;\">Urine\/plasma urea ratio<\/td>\n<td style=\"width: 31.5018%;\" align=\"center\">&gt;8<\/td>\n<td style=\"width: 33.9438%;\" align=\"center\">&lt;3<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 34.4322%;\">Fractional excretion of sodium (%)<\/td>\n<td style=\"width: 31.5018%;\" align=\"center\">&lt;1<\/td>\n<td style=\"width: 33.9438%;\" align=\"center\">&gt;2<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 34.4322%;\">Fractional excretion of urea (%)<\/td>\n<td style=\"width: 31.5018%;\" align=\"center\">&lt;35<\/td>\n<td style=\"width: 33.9438%;\" align=\"center\">&gt;35<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 34.4322%;\">Urinary sediment<\/td>\n<td style=\"width: 31.5018%;\" align=\"center\">Normal; occasional hyaline or fine granular casts<\/td>\n<td style=\"width: 33.9438%;\" align=\"center\">Renal tubular epithelial cells; granular and muddy brown casts<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Osm, osmole; Eq, equivalent.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>References:<\/strong><\/p>\n<ol>\n<li>Schrier RW, Wang W, Poole B, Mitra A. Acute renal failure: definitions, diagnosis, pathogenesis, and therapy. J Clin Invest. 2004 Jul;114(1):5-14. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/15232604\/\" target=\"_blank\" rel=\"noopener\">[Medline]<\/a><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>Created: Jun 12, 2009<\/p>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Sorry, this entry is only available in Espa\u00f1ol.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[473],"tags":[231,593,1808,674,901,273,274,2042,1353,199,2041,2043],"class_list":["post-5675","post","type-post","status-publish","format-standard","hentry","category-nephrology","tag-acute","tag-agudo","tag-arf","tag-failure","tag-fallo","tag-guia","tag-guidelines","tag-indices","tag-nephrology","tag-renal","tag-urinaria","tag-urinary"],"modified_by":"Guillermo Firman","_links":{"self":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts\/5675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/comments?post=5675"}],"version-history":[{"count":2,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts\/5675\/revisions"}],"predecessor-version":[{"id":8983,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts\/5675\/revisions\/8983"}],"wp:attachment":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/media?parent=5675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/categories?post=5675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/tags?post=5675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}