When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.
Did you know?
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Did you know?
Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.
Mercury (element)
A Human Element Emerges
The five skills of the element Collection of Information
The two skills of the element Selection of Alternatives
