digo.org/guidelines/">KDIGO guidelines</a> on changes in creatinine*. The KDIGO guidelines are as follows:</p>
<ul class="simple">
<li><p><em>Stage 1:</em> 0.3 increase in serum creatinine in &lt; 48 hours OR 50% increase in serum creatinine in &lt; 7 days (168 hours)</p></li>
<li><p><em>Stage 2:</em> 100% increase in (or doubling of) serum creatinine in &lt; 7 days (168 hours)</p></li>
<li><p><em>Stage 3:</em> 200% increase in (our tripling of) serum creatinine in &lt; 7 days (168 hours)</p></li>
</ul>
<p>