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妊娠后三个月发生高血压者,其血浆去甲肾上腺素水平降低是由于交感神经系统对高血压反应活动降低。在孕28-32周间测定血浆去甲肾上腺素水平试图确定其变化是在血压变化之前或接续其后。Gant等(1974)的“翻身试验”指孕28-32周时从左侧卧位转为仰卧位,舒张压如增加>20 mmHg,预测出15/16的孕妇以后发生高血压。本文结合翻身试验和测定血浆去甲肾上腺素,预测100名初孕妇以后发生妊娠合并高血压的可能性。受试的100名初孕妇平均年龄28岁,根据末次月经、孕16和28周超声波检查判断妊娠在28-32周之间。除外有高血压和肾病史的患者。用19号头皮静脉针刺入孕妇前臂静脉后,取左侧卧位,每5分
Hypertension occurs three months after pregnancy, the plasma norepinephrine levels decreased due to the sympathetic nervous system reaction to hypertension decreased. Plasma norepinephrine levels were measured at 28-32 weeks of gestation in an effort to determine whether changes occurred before or after blood pressure changes. The Gant et al. (1974) “stand-in test” refers to a shift from left-lateral to supine position at 28-32 weeks of gestation, with an increase in diastolic blood pressure of> 20 mmHg predicting hypertension in 15/16 of pregnant women. This article combines the stand-up test and determination of plasma norepinephrine to predict the possibility of pregnancy-induced hypertension after 100 first-time pregnant women. The average age of the 100 first pregnant women tested was 28 years old. According to the last menstruation, 16th and 28th weeks of pregnancy, the pregnancy was estimated between 28-32 weeks. Except for patients with a history of high blood pressure and kidney disease. With 19 scalp intravenous needle pricking pregnant forearm vein, take the left lateral position, every 5 minutes