Exercise-associated hyponatremia effective at normalizing blood sodium levels than oral administration for asymptomatic EAH. Exercise-associated hyponatremia Exercise-associated hyponatremia, or EAH, is a fluid-electrolyte disorder caused by a decrease in sodium levels (hyponatremia) during or up to 24 hours after prolonged physical activity. This disorder can develop when marathon runners or endurance event athletes drink more fluid, usually water or sports drinks, than their kidneys can excrete. This excess water can severely dilute the level of sodium in the blood needed for organs, especially the brain, to function properly. The incidence of EAH in athletes has increased in recent years, especially in the
Scarlet fever serum Scarlet fever serum Scarlet fever serum was used beginning in November 1900 after its development in the Sero-Therapeutic Laboratory of Rudolph Hospital in Vienna, Austria. The serum was taken from the blood of horses. Infected children were injected in their abdominal skin by Dr. Paul Moser. Mortality rates from scarlet fever declined significantly following the use of the blood serum. Moser at first used scarlet fever serum primarily on the most severely sick persons. After achieving positive results it was applied in the first or second day following contraction of scarlet fever. In many cases the children treated demonstrated great