When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
Looking to the Future
The Last Century Trends
Predicted Temperature Trends Through the 21st Century
Trends in Air Quality
Obesity Trends among U.S. Adults Over the last two decades