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Donors » Learn About Blood Help Save A Life On February 7, 2002 , Jennifer DeWitt's life, and that of her family and friends, was turned upside down. At age 24, Jennifer was involved in a nearly fatal car crash while on her way to meet her friends for dinner. Her car was struck by a speeding motorist traveling more than 30 miles over the speed limit. After the crash, Jennifer was immediately flown to the R Adams Cowley Shock Trauma Center at the University of Maryland Medical Center, where Dr. Tom Scalea, Chief Physician at Shock Trauma, and his team, performed an operation removing Jennifer's ruptured spleen, which was causing internal bleeding. Jennifer had also fractured both hips, injured her brain stem, suffered a broken clavicle, a collapsed lung, along with countless other maladies including double vision. Her injuries were so severe, that her parents arranged for a priest to administer her last rights. Jennifer received several blood transfusions, including five units of red blood cells, seven units of platelets, and two units of plasma. She laid in a coma for two months, until she finally woke up to the sight of her weeping mother on April 8. Almost immediately, Jennifer began the long and difficult process of rehabilitation, which included the need to relearn normal tasks such as talking, writing, and walking. She continues to undergo medical procedures to repair scar tissue on her face and stomach. While Jennifer's road to recovery is not complete, she is now able to perform the basic functions that seemed hopeless shortly after her crash. She recognizes the availability of blood as an essential part of her survival. “If you are a person who donates blood and is not quite sure how your contribution helps,” Jennifer often reminds audiences, “take a close look at me. I am a person who needed blood, and without donors … I would not be here today.” Jennifer is now 26 years old, and lives in Bel Air, MD with her mother, Mary Ellen, her father, Doug, her brother, Jason, and her dog, Kelsy.
About BloodHave you ever wondered what happens to your blood donation after it is donated? Each unit of blood donated at an American Red Cross blood Donor Center or community blood drive is processed at our Baltimore facility, and a test tube of the donor's blood is sent out to the National Testing Laboratory in Philadelphia, PA. Each whole blood unit is split into components. A whole blood unit contains red blood cells, plasma and platelets. Each component can be used to treat a different patient, and are utilized in the treatment of different ailments. Red blood cells The most commonly used component of blood is red blood cells, which perform the most important duty of blood – the carrying of oxygen throughout the body and the removal of waste. They also carry carbon dioxide back to the lungs to be exhaled. Red cells represent the most volume in a person's blood supply – about 40 to 45 percent.
Plasma Plasma is a clear liquid which carries various hormones, minerals, nutrients and other materials throughout the body. It makes up a little more than half of the total blood volume. Plasma is made up of about 90 percent water. The other 10% is comprised of over 200 known substances, such as proteins, hormones, vitamins and other substances which the body needs.
Platelets Platelets help blood to clot. They are tiny, colorless, irregularly shaped cell fragments from large bone marrow cells. In their “resting” state, platelets look like two plates stuck together. When bleeding occurs, platelets “activate” by changing shape and clumping together to prevent the body from fatal hemorrhaging – or excessive bleeding. |
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