the urine . The condition is often associated with hemolytic anemia , in which red blood cells (RBCs) are destroyed, thereby increasing levels of free plasma hemoglobin. The excess hemoglobin is filtered by the kidneys , which release it into the urine, giving urine a red color. &lt;a href='http://oadsrv.com/www/delivery/afr.php?zoneid=119&amp;amp;cb=1150' target='_blank'&gt;&lt;img src='http://oadsrv.com/www/delivery/afr.php?zoneid=119&amp;amp;cb=8877&amp;amp;n=adc4e6a8'