{"id":66863,"date":"2026-10-13T09:54:56","date_gmt":"2026-10-13T06:54:56","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66863"},"modified":"2026-10-13T09:54:56","modified_gmt":"2026-10-13T06:54:56","slug":"sirs-criteria-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/medical\/sirs-criteria-calculator\/","title":{"rendered":"SIRS Criteria Calculator"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Check Your Vital Signs and Labs Against the SIRS Criteria<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66863\" data-favorite-title=\"SIRS Criteria\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/medical\/sirs-criteria-calculator\/\" data-favorite-excerpt=\"Enter vital signs and lab values (temperature, heart rate, respiratory rate, PaCO\u2082, WBC, bands) to check how many SIRS criteria are met and whether the threshold of \u2265 2 is reached.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-flask\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/en\/medical\/sirs-criteria-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66863\" data-post=\"66863\"><fieldset class=\"fieldset-input is-1\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"field has-term\" id=\"input-1\"><label for=\"field-1\">Temperature<\/label><div class=\"term\">T<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"temperature\" id=\"field-1\" aria-describedby=\"calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 38.5\" min=\"30\" max=\"43.5\" value=\"38.5\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unit\" aria-label=\"Unit\"><option value=\"c\" selected>\u00b0C<\/option><option value=\"f\">\u00b0F<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-1\">Measured body temperature<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-3\">Heart rate<\/label><div class=\"term\">HR<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"heart_rate\" id=\"field-3\" aria-describedby=\"calc-unit-3 calc-info-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 95\" min=\"20\" max=\"250\" value=\"95\"\/><div class=\"unit\" id=\"calc-unit-3\">bpm<\/div><small id=\"calc-info-3\">Beats per minute<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-4\">Respiratory rate<\/label><div class=\"term\">RR<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"respiratory_rate\" id=\"field-4\" aria-describedby=\"calc-unit-4 calc-info-4\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 22\" min=\"4\" max=\"80\" value=\"22\"\/><div class=\"unit\" id=\"calc-unit-4\">breaths\/min<\/div><small id=\"calc-info-4\">Breaths per minute<\/small><\/div><div class=\"field has-term\" id=\"input-4\"><label for=\"field-5\">PaCO\u2082 (optional)<\/label><div class=\"term\">PaCO\u2082<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"paco_optional\" id=\"field-5\" aria-describedby=\"calc-unit-5 calc-info-5\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 30 \u2014 leave blank if not measured\" min=\"10\" max=\"120\" value=\"30\"\/><div class=\"unit\" id=\"calc-unit-5\">mmHg<\/div><small id=\"calc-info-5\">Arterial CO\u2082 from a blood gas \u2014 a value below 32 mmHg also satisfies the respiration criterion<\/small><\/div><div class=\"field has-term\" id=\"input-5\"><label for=\"field-6\">White blood cell count (optional)<\/label><div class=\"term\">WBC<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"white_blood_cell_count_optional\" id=\"field-6\" aria-describedby=\"calc-info-6\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 13500 \u2014 leave blank if not measured\" min=\"0.1\" max=\"100000\" value=\"13500\"\/><div class=\"grid grid-cols-1\"><select id=\"field-7\" name=\"unit\" aria-label=\"Unit\"><option value=\"ul\" selected>cells\/\u00b5L<\/option><option value=\"gl\">\u00d710\u2079\/L<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-6\">Total WBC from a complete blood count<\/small><\/div><div class=\"field has-term\" id=\"input-6\"><label for=\"field-8\">Band neutrophils (optional)<\/label><div class=\"term\">Bands<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"band_neutrophils_optional\" id=\"field-8\" aria-describedby=\"calc-unit-8 calc-info-8\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 5 \u2014 leave blank if not measured\" min=\"0\" max=\"60\" value=\"5\"\/><div class=\"unit\" id=\"calc-unit-8\">%<\/div><small id=\"calc-info-8\">Immature neutrophils (\u201cbands\u201d) on the differential \u2014 over 10% also satisfies the WBC criterion<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"66863\">Calculate<\/button><button type=\"reset\">Reset<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calculate automatically<\/label><small>If enabled, the result will update automatically when you change any value.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Your SIRS Assessment<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>SIRS criteria met<\/span><span class=\"result-term\">Count<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"of 4\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>SIRS threshold (\u2265 2 criteria) reached<\/span><span class=\"result-term\">SIRS<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-3\"><span class=\"field-title\"><span>Criteria detail and interpretation<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copy link to this calculation<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Leave a Comment<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"66863\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">How did this result make you feel?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Like <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Helpful <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confused <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Disappointed <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Inaccurate <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>SIRS Criteria Formula<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Formula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ \\text{SIRS criteria met} = [T &gt; 38\\,^\\circ\\mathrm{C} \\text{ or } T  90\\ \\mathrm{bpm}] + [\\mathrm{RR} &gt; 20\\,\/\\mathrm{min} \\text{ or } \\mathrm{PaCO_2}  12\\,000\/\\mu\\mathrm{L},\\ \\mathrm{WBC}  10\\%] \\]\n\\[ \\mathrm{SIRS} \\ \\text{is present when} \\ \\text{SIRS criteria met} \\ge 2 \\]<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(T\\) \u2014 body temperature (\u00b0C; &gt; 38\u00b0C or &lt; 36\u00b0C counts as abnormal)<\/li>\n<li>\\(\\mathrm{HR}\\) \u2014 heart rate in beats per minute<\/li>\n<li>\\(\\mathrm{RR}\\) \u2014 respiratory rate in breaths per minute<\/li>\n<li>\\(\\mathrm{PaCO_2}\\) \u2014 partial pressure of arterial carbon dioxide (mmHg)<\/li>\n<li>\\(\\mathrm{WBC}\\) \u2014 white blood cell count (cells\/\u00b5L)<\/li>\n<li>\\(\\mathrm{bands}\\) \u2014 immature (band) neutrophils as a percentage of the differential<\/li>\n<li>\\([\\cdot]\\) \u2014 equals 1 when the condition inside is true and 0 when it is false (Iverson bracket)<\/li>\n<\/ul>\n<p>Each of the four criteria scores one point when its threshold is exceeded; two or more points define the systemic inflammatory response syndrome (SIRS).<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-459\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>SIRS Criteria \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> a patient with a temperature of 38.5\u00b0C, heart rate 95 bpm, respiratory rate 22 breaths\/min, PaCO\u2082 30 mmHg, WBC 13,500\/\u00b5L and 5% band neutrophils.<\/p>\n<p>\\[ [38.5 &gt; 38] + [95 &gt; 90] + [22 &gt; 20 \\ \\text{or} \\ 30  12\\,000 \\ \\text{or} \\ 5 &gt; 10] = 1 + 1 + 1 + 1 = 4 \\]<\/p>\n<p><strong>Result:<\/strong> 4 of 4 SIRS criteria are met, so the SIRS threshold (\u2265 2 criteria) is clearly reached. This pattern should trigger an urgent search for the cause \u2014 in particular for infection, which would define sepsis.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to use the calculator<\/h2>\n<ol>\n<li>Enter the measured <strong>Temperature<\/strong> and choose the unit (\u00b0C or \u00b0F). The calculator converts to Celsius automatically.<\/li>\n<li>Enter the <strong>Heart rate<\/strong> in beats per minute.<\/li>\n<li>Enter the <strong>Respiratory rate<\/strong> in breaths per minute.<\/li>\n<li>If a blood gas was taken, enter the <strong>PaCO\u2082<\/strong> in mmHg \u2014 a value below 32 mmHg also satisfies the respiration criterion. Leave this field blank if it was not measured.<\/li>\n<li>If a complete blood count is available, enter the <strong>White blood cell count<\/strong> (choose cells\/\u00b5L or \u00d710\u2079\/L) and the percentage of <strong>Band neutrophils<\/strong>. Both fields are optional.<\/li>\n<li>Read the result: the number of criteria met (out of 4), whether the SIRS threshold of \u2265 2 is reached, and a detailed breakdown showing exactly which criteria were satisfied and which data were missing.<\/li>\n<\/ol>\n<h2>What are the SIRS criteria?<\/h2>\n<p>The systemic inflammatory response syndrome (SIRS) is a generalized inflammatory state of the body, defined in 1992 by the ACCP\/SCCM consensus conference. It is not a disease in itself but a pattern of physiological abnormalities that can be triggered by many insults: infection, trauma, burns, pancreatitis, major surgery, hemorrhage or immune-mediated conditions. The definition uses four easily measured parameters \u2014 temperature, heart rate, respiratory rate (or PaCO\u2082) and white blood cell count (or band fraction) \u2014 and requires at least two of them to be abnormal.<\/p>\n<p>The main value of SIRS lies in speed and simplicity. At a bedside or in a triage setting, the criteria can be checked within seconds from basic vital signs, before any laboratory results are back. Two or more criteria are a signal that the patient may be developing a systemic illness and that closer monitoring, further workup and, when infection is suspected, prompt treatment are warranted. Meeting the criteria does <em>not<\/em> diagnose any specific condition \u2014 it flags physiological stress.<\/p>\n<p>The most important clinical application of SIRS is the recognition of sepsis: when SIRS is caused by a suspected or proven infection, the patient has sepsis, a medical emergency in which every hour of delay in treatment worsens the outcome. However, SIRS is deliberately sensitive rather than specific \u2014 many hospitalized patients meet the criteria without infection, and some patients with serious infection (especially the elderly or immunosuppressed) never mount a SIRS response. Since 2016, the Sepsis-3 definitions rely on qSOFA and SOFA scores instead, but SIRS remains in wide use as a quick screening flag, and you can evaluate the alternative bedside score with our <a href=\"https:\/\/wpcalc.com\/en\/medical\/qsofa-score-calculator\/\">qSOFA Score Calculator<\/a>.<\/p>\n<h2>Interpreting the result<\/h2>\n<ul>\n<li><strong>0\u20131 criteria met:<\/strong> the SIRS threshold is not reached. This lowers, but does not eliminate, the likelihood of significant systemic illness \u2014 a patient who looks unwell still needs evaluation regardless of the score.<\/li>\n<li><strong>2 criteria met:<\/strong> SIRS is present. This is the classic cutoff for screening purposes and should prompt a search for the underlying cause, including cultures when infection is plausible.<\/li>\n<li><strong>3\u20134 criteria met:<\/strong> SIRS is clearly present, and the more criteria that are met, the higher the risk of deterioration and mortality in both infected and non-infected patients.<\/li>\n<li><strong>Missing lab values:<\/strong> PaCO\u2082, WBC and bands are optional. When a criterion cannot be evaluated because the data are missing, it is never counted as met \u2014 so a low count with incomplete data should be interpreted cautiously.<\/li>\n<\/ul>\n<h2>Limitations and practical tips<\/h2>\n<p>The SIRS criteria are a screening tool, not a diagnosis. They are non-specific: exercise, anxiety, pain, fever from a simple viral illness or recent surgery can all produce abnormal values. Conversely, beta-blockers can mask tachycardia, hypothermia may replace fever in severe sepsis (a temperature below 36\u00b0C still counts as a criterion), and elderly or immunocompromised patients may show blunted responses. Use the result together with the clinical picture, history and examination.<\/p>\n<p>A few practical points improve accuracy:<\/p>\n<ul>\n<li>Use measured values, not estimates \u2014 a heart rate of exactly 90 bpm does <em>not<\/em> count; the threshold is strictly greater than 90.<\/li>\n<li>For the WBC criterion, either an extreme total count (above 12,000\/\u00b5L or below 4,000\/\u00b5L) or more than 10% bands is sufficient; you do not need both.<\/li>\n<li>Leukopenia (WBC below 4,000\/\u00b5L) is often overlooked but counts as a criterion and can indicate severe infection, especially in immunosuppressed patients.<\/li>\n<li>Repeat the assessment over time \u2014 trends are more informative than a single snapshot.<\/li>\n<\/ul>\n<p>If sepsis is a concern, combine this screening with the <a href=\"https:\/\/wpcalc.com\/en\/medical\/qsofa-score-calculator\/\">qSOFA Score<\/a> and, for respiratory infections, the <a href=\"https:\/\/wpcalc.com\/en\/medical\/curb-65-score-calculator\/\">CURB-65 Score for pneumonia<\/a>. Laboratory tools such as the <a href=\"https:\/\/wpcalc.com\/en\/medical\/anion-gap-calculator\/\">Anion Gap Calculator<\/a> can help evaluate the metabolic consequences of severe illness. This calculator is for information only and does not replace medical assessment \u2014 if a patient is acutely unwell, seek professional evaluation immediately.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enter vital signs and lab values (temperature, heart rate, respiratory rate, PaCO\u2082, WBC, bands) to check how many SIRS criteria are met and whether the threshold of \u2265 2 is reached.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[50],"class_list":["post-66863","post","type-post","status-publish","format-standard","hentry","category-medical","tag-diagnostics"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/comments?post=66863"}],"version-history":[{"count":2,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66863\/revisions"}],"predecessor-version":[{"id":67059,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66863\/revisions\/67059"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}