Hyponatremia refers to a low level of sodium in the blood. Hyponatremia may result from excess fluid in the body relative to a normal amount of sodium, or it may be due to a loss of sodium and body fluid. Symptoms are nonspecific and can include: mental changes, headache, nausea and.
A third plane, American Airlines Flight 77, hit the western side of the Pentagon, just outside Washington, D.C. The fourth hijacked plane, United Airlines Flight 93, crashed down in a field in rural Pennsylvania, never reaching its intended target because its crew and passengers fought back against the terrorists.
Safety Board Blames Pilot Error in Crash of Kennedy Plane. The cause of the plane crash that killed John F. Kennedy Jr., his wife and sister-in-law a year ago was probably that Mr. Kennedy, with hardly any experience flying his plane alone at night, became disoriented in haze, the National Transportation Safety Board said today in a staff report.