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晚期妊娠毒血症高血压正常妊娠发生一系列相当剧烈的生理变化:首先是肾功能变化,由于妊娠子宫对输尿管压力,特别是立位时,导致一定程度的肾盂积水,输尿管积水。尽管正常妊娠使肾小球滤过率增加达50％,肾血流量增加达25％,但立位钠排出量可以下降达50％。妊娠期水盐平衡的变化也是很突出的:由于胎盘组织分泌大量雌激素和孕酮,雌激素促使钠潴留,供应胎儿、胎盘、了宫生长需要,同时也使母体血容量扩张。醛固酮分泌增多在这方面起一定作
Late gestational tachycardia Hypertension normal pregnancy occurs a series of quite dramatic physiological changes: First, changes in renal function, due to pregnancy uterine pressure on the ureter, especially when standing, resulting in a certain degree of hydronephrosis, ureteral hydronephrosis. Although normal pregnancy increases glomerular filtration rate by 50% and renal blood flow increases by 25%, standing sodium output can be reduced by up to 50%. Changes in the balance of water and salt during pregnancy is also very prominent: due to the secretion of large amounts of placental estrogen and progesterone, estrogen to promote sodium retention, supply of fetus, placenta, Palace growth needs, but also to maternal blood volume expansion. Increased secretion of aldosterone in this area must be made