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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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The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

The hierarchy of biological classification's eight major taxonomic ranks. The hierarchy of biological classification's eight major taxonomic ranks.
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Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide ... Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide ...
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Video: Conjunctivitis

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