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妊娠晕厥无明显诱因而突然发生晕厥,是早孕期常见的现象。造成这种现象的原因有:血管舒缩中枢不稳定;久立、久坐时血液淤滞于下肢及内脏;在高温环境下或沐浴水温过高时皮肤血管扩张等,均可使回心血量减少,导致低血压及暂时性脑缺血反应。此外,还见于妊娠反应伴发的低血糖反应。预防措施主要是避免久立久坐及剧烈的下肢运动,防止突然的体位变化(如由蹲位或坐位突然站立),不在高温环境下久留。避免沐浴时水温过高,实行少食多餐或正餐间加以辅助餐,就可以保持血压及血糖水平稳定,减少晕厥发生。若感到头晕欲倒时,应就地蹲、坐或躺下,以免发生意外损伤。晕厥为一过性的,一旦发生不必惊慌失措,可针对原因处理,由于
No significant cause of syncope in pregnancy and syncope occurred suddenly, is a common phenomenon in early pregnancy. The reasons for this phenomenon are: vasomotor center instability; sedentary, sedentary blood stasis in the lower extremities and internal organs; in high temperature or bath water temperature is too high when the skin vasodilation, etc., can make a return to the amount of blood reduced , Leading to hypotension and transient ischemic attacks. In addition, also found in the pregnancy reaction associated with hypoglycemia. Preventive measures are mainly to avoid long standing sedentary and vigorous lower limb movements, to prevent sudden changes in position (such as standing by the squatting or sitting suddenly), not long stay in high temperature environment. Avoid bathing when the water temperature is too high, the implementation of Eat less meals or dinner room to help meal, you can keep blood pressure and blood sugar levels stable and reduce syncope. If you feel dizzy, should squat, sit or lie down, so as to avoid accidental injury. Syncope is a transient, in the event do not have to panic, can be dealt with for reasons, due to