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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
The FDA recognizes 118 routes of administration.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.