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Hemoglobin is an iron-containing protein that gives red blood cells their color and facilitates transportation of oxygen from the lungs to tissues and carbon dioxide from tissues to the lungs to be exhaled. [3] Red blood cells are the most abundant cell in the blood, accounting for about 40–45% of its volume.
Arterial blood and capillary blood are bright red, as oxygen imparts a strong red color to the heme group. Deoxygenated blood is a darker shade of red; this is present in veins, and can be seen during blood donation and when venous blood samples are taken. This is because the spectrum of light absorbed by hemoglobin differs between the ...
America's Blood Centers (ABC), North America's largest network of non-profit community blood centers. [2] Most of the independent blood centers on this list are ABC members, and these account for approximately 60 percent of the U.S. blood supply. [3] Blood Centers of America (BCA), a national cooperative of independent blood centers. [4]
When you check into a blood donation center, the first thing the staff does is look at your vital signs, blood pressure and heart rate to see if you qualify to donate, Dr. Anjali Bharati ...
The Department of Health and Human Services also has a web page dedicated to finding a blood donation center near you. SEE MORE: Red Cross declares emergency blood shortage affecting US hospitals.
A hemoglobin concentration measurement being administered before a blood donation at the American Red Cross Boston Blood Donation Center. Hemoglobin concentration measurement is among the most commonly performed blood tests, usually as part of a complete blood count. For example, it is typically tested before or after blood donation.
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The theme of the 2012 World Blood Donor Day campaign, "Every blood donor is a hero" focuses on the idea that everyone can become a hero by giving blood. Based on data reported by 180 countries between 2011 and 2013, the WHO estimated that approximately 112.5 million units of blood were being collected annually.
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