When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Illicit drug use costs the United States approximately $181 billion every year.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.
