As with lower respiratory infections,the rate for upper respiratory infections and otitis was estimated to belower in developed countries, at 12% (5â18%). Globally, more than 1.5million deaths annually from respiratory infections are attributable to theenvironment (see Table A2.3).ther estimates of theenvironmental attributable fraction came from the CRA (WHO, 2002). Wereport the results for each disease or disease group in the following sections. Indoor and outdoor air quality are two of the main environmental factorsof concern for acute lower respiratory infections.
Erythropoietin (EPO) is a hormone produced by the kidney that promotes the formation of red blood cells by the bone marrow.
Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test. Erythropoietin (EPO), a large (193 amino acid residue) glycoprotein hormone secreted by the kidney, regulates RBC production. Normally, EPO levels vary inversely with hematocrit. Hypoxia stimulates EPO release, which, in turn, stimulates bone marrow erythrocyte production.