Syncopal States in Blood Donors
Syncopal conditions are a group of emergency conditions faced by blood donors, which may be manifested through short-term faint with disorders of the cardiovascular and respiratory activity. Such faint is frequently preceded by prodromal conditions, including blurred vision, general weakness, tinnitus, nausea, paresthesia in the limbs.Common symptoms of all syncopal conditions include rapid faint, pale skin and mucous membranes, profuse sweating, low blood pressure, weak frequent or rare pulse. Respiratory arrest is not observed. The muscle tone is reduced.The donors are usually concerned about what has happened. They have general weakness and pallor.