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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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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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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.