857. Major causes of decreased stroke volume in infants & children / Formula for cardiac output and blood pressure / When is cyanosis visible? Who becomes cyanotic first, the anemic or non-anemic patient? April 1st, 2009 by reuben in .cyanosis, kids Back Top Tags: card 856. Describe the path of blood through the fetus, starting with oxygenated blood in the placenta / When does the ductus arteriosis close? 858. Three clinical parameters that allow the differentiation of cardiac and pulmonary etiology of cyanosis / Common causes of pediatric chest pain Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.