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	impetigo impetigo , contagious skin infection affecting mainly infants and children. The causative organisms are either hemolytic streptococci or staphylococci . The eruption consists of small red spots or blisters that rupture, discharge, and become encrusted. The infection is easily spread over the skin... Read more
	Goldenseal Goldenseal Goldenseal (Hydrastis canadensis ) is a woodland plant belonging to the family Ranunculaceae. The plant is also known as eyebalm, eyeroot, hydrastis, orangeroot, turmeric root, and yellowroot. Mainly found in the wild, goldenseal grows to a height of about 1 ft (30 cm). It has an erect,... Read more
	Phlebotomy Phlebotomy Definition Phlebotomy is the act of drawing or removing blood from the circulatory system through a cut (incision) or puncture in order to obtain a sample for analysis and diagnosis. Phlebotomy is also done as part of the patient's treatment for certain blood... Read more
	blood bank blood bank site or mobile unit for collecting, processing, typing, and storing whole blood , blood plasma and other blood constituents. Most hospitals maintain their own blood reserves, and the American Red Cross provides a nationwide collection and distribution service. The Red Cross collects... Read more
	placebo placebo , inert substance given instead of a potent drug . Placebo medications are sometimes prescribed when a drug is not really needed or when one would not be appropriate because they make patients feel well taken care of. Placebos are also used as controls in scientific studies on the... Read more
	ipecac ipecac , drug obtained from the dried roots of a creeping shrub, Cephaelis (or Psychotria ) ipecacuanha, native to Brazil but cultivated in other tropical climates. There are three varieties of the root, brown, red, and gray, varying according to the age of the plant, its place of growth, or... Read more
	clinic clinic name for an institution providing medical diagnosis and treatment for ambulatory patients. The forerunner of the modern clinic was the dispensary, which dispensed free drugs and served only those who could not afford to pay a fee. Dispensaries began to appear in London toward the end of the... Read more
	agranulocytosis agranulocytosis , disease in which the production of granulated white blood cells by the bone marrow is impaired. Although the disease may occur spontaneously it is usually induced by exposure to antithyroid drugs, sulfonamides, phenothiazines, chemotherapy, and radiation therapies. Granulocytes... Read more
	scarlet fever scarlet fever or scarlatina, an acute, communicable infection, caused by group A hemolytic streptococcal bacteria (see streptococcus ) that produce an erythrogenic toxin. The disease is now uncommon, probably because antibiotic therapy has lessened the likelihood of spread. It occurs in young... Read more
	Water Treatment Water Treatment The goal of water treatment, usually from surface sources such as lakes, reservoirs, or rivers, is to remove contaminants and organisms through a combination of biological, chemical, and physical processes to make it safe for drinking. Some of these occur in the natural environment,... Read more