Myths about Blood

March 4th, 2011 by admin

Any certified doctor, nurse, medical assistant, or student of medical assistant college looking to become a medical assistant would likely know most of these curious blood facts. But not all of us can claim to have spent much time in a health care setting, either nursing, doctoring, or medical assisting. Most of us, in fact, have no interest in any of these fields or of medical assisting college. We’re you’re average Joes who know little about blood and may in fact, hold as true some of the various myths that this infographic dispels.

Take for instance, that old claim that blood is blue. As the graphic points out, blood would not turn red by coming into contact with air because blood is full of oxygen. Carrying oxygen is in fact one if its primary purposes, so to suggest that it is blue because of a lack of oxygen is about as irrational as an urban myth can get.

But what about other facts that we likely wouldn’t even think about, like the fact that blood is 90% water? Or that a red blood cell lives for only 4 months? Everybody knows that there are multiple blood types and some of us may even be aware that there are 4 human blood types (A, B, AB, O), but did you know that cats have 11 different blood types or that cows have 800? Just imagine trying to find a blood donor for a cow!

We often will be encouraged to give blood, but as it turns out, only 38% of the population in the US is able to give blood. If you have certain illnesses, have had unprotected sex, or recently had a tattoo, piercing or surgery, for instance, you will not be able to donate blood, even though over 38,000 donations are needed every single day. In fact one in four people will require a blood transfusion at some point in their life.

But what about the Indian teenager who has a rare disorder which causes her to spontaneously bleed without being cut or scratched? And finally, how about the miraculous power of cord blood, the blood from the umbilical cord of a new born baby? As we learn from this infographic, blood is a great deal more interesting than most of us can imagine.  Learn more training for a great career in medical assisting.

Myths about blood

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