Exanthem
Exanthem: A rash. The word “exanthem” comes from the Greek “exanthema” which means “a breaking out.” “Anthos” in Greek is “a flower,” particularly a flower blossom, so a child breaking out with an rash is likened to a flower bursting into bloom.
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- Exanthem subitum
Exanthem subitum: Means a sudden rash. A viral disease of infants and young children with sudden onset of high fever which lasts several days and then suddenly subsides leaving in its wake a fine red rash. The causative agent is herpesvirus type 6 so the disease is known as Sixth Disease. Also called Pseudorubella, Roseola, […]
- Excess iron
Excess iron: Iron overload can damage the heart, liver, gonads and other organs. Iron overload is a particular risk for: People with certain genetic conditions such as hemochromatosis; and People receiving repeated blood transfusions. According to the National Academy of Sciences, the Recommended Dietary Allowances of iron are 15 milligrams per day for women and […]
- Excess selenium
Excess selenium: Too much selenium (selenosis) which may cause reversible balding and brittle nails, give a garlic odor to the breath, and cause intestinal distress, weakness and slowed mental functioning. People who chronically consume more than the tolerable upper intake level (UL) of selenium — in adults, the UL is 400 micrograms per day of […]
- Excessive daytime sleepiness
Excessive daytime sleepiness: A neurological disorder in which there is a sudden recurrent uncontrollable compulsion to sleep. Excessive daytime sleepiness is also known as narcolepsy. The condition is often associated with: Cataplexy — a sudden loss of muscle tone and paralysis of voluntary muscles associated with a strong emotion Sleep paralysis — immobility of the […]
- Exchange, gas
Exchange, gas: The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.