1 Approximately 36,000 units of red blood cells are needed every day in the U.S. 2  Nearly 7,000 units of platelets and 10,000 units of plasma are needed daily in the U.S.  Nearly 21 million blood components are transfused each year in the U.S.
http://www.redcrossblood.org/learn-about-blood/blood-facts-and-statistics
1 Every two seconds someone in the U.S. needs blood. 2  Approximately 36,000 units of red blood cells are needed every day in the U.S. 3  Nearly 7,000 units of platelets and 10,000 units of plasma are needed daily in the U.S.  Nearly 21 million blood components are transfused each year in the U.S.
http://www.redcrossblood.org/learn-about-blood/blood-facts-and-statistics
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http://answers.webmd.com/search-results?ques=how%20much%20blood%20do%20we%20have%20in%20our%20body
The first class is the least severe, concerning a hemorrhage equal to or lesser than 15 percent of the body’s total blood volume. For reference, when a person donates blood, about eight to 10 percent of the body’s blood is removed. There are generally no symptoms of blood loss at this point, though some may feel slightly faint. A Class 2 hemorrhage is a loss of 15 to 30 percent of blood volume. This is where symptoms of blood loss begin to manifest. “The body tries to compensate at this point with, among other things, a faster heartbeat to speed oxygen to tissues,” Alton said. “The patient will feel weak, appear pale, and skin will be cool.”.
http://www.medicaldaily.com/breaking-point-how-much-blood-can-human-body-lose-350792
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http://answers.webmd.com/search-results?ques=how%20much%20blood%20do%20we%20have%20in%20our%20body
1 Every two seconds someone in the U.S. needs blood. 2  Approximately 36,000 units of red blood cells are needed every day in the U.S.  Nearly 7,000 units of platelets and 10,000 units of plasma are needed daily in the U.S.
http://www.redcrossblood.org/learn-about-blood/blood-facts-and-statistics
1 The average adult has about 10 pints of blood in his body. Roughly 1 pint is given during a donation. 2  A healthy donor may donate red blood cells every 56 days, or double red cells every 112 days.  A healthy donor may donate platelets as few as 7 days apart, but a maximum of 24 times a year.
http://www.redcrossblood.org/learn-about-blood/blood-facts-and-statistics
Q.I had to receive 6 pints of blood after my surgery last year, exactly how many pints do we have to begain with. A. According to a book I have it&#39;s one twelfth of the body weight. So about 11 pints for the average person.
http://answers.webmd.com/search-results?ques=how%20much%20blood%20do%20we%20have%20in%20our%20body
1 Approximately 36,000 units of red blood cells are needed every day in the U.S. 2  Nearly 7,000 units of platelets and 10,000 units of plasma are needed daily in the U.S. 3  Nearly 21 million blood components are transfused each year in the U.S.  The average red blood cell transfusion is approximately 3 pints.
http://www.redcrossblood.org/learn-about-blood/blood-facts-and-statistics
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http://answers.webmd.com/search-results?ques=how%20much%20blood%20do%20we%20have%20in%20our%20body
how many units of blood in the body
There are 10 pints of blood in body. There are 10 pints of blood in the body.