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羊水的酸硷气体分析报道较少。一年多来,我们测定154例,现报道如下。材料和方法正常妊娠者分早、中、晚孕三组。本文将妊娠4个月以内定为早孕组(A组),妊娠4～6个月为中孕组(B组),妊娠6个月以上为晚孕组(C组)。腹部常规消毒后盖消毒巾,在严密无菌条件下抽取羊水2ml,立即送检或暂置冰箱当天测定。仪器为Wxy—2型血液酸硷、气体分析仪及CY—2型测氧仪。氧分压测定是以38℃恒温下反复与空气平衡的蒸馏水怍定标液,羊水抽入注射器内隔绝空气混匀后注入电极记录读数,羊水中实际pH(酸硷度)、PCO_2(二氧
Amniotic fluid acid gas analysis reported less. Over the past year, we measured 154 cases, are reported below. Materials and Methods Normal pregnancy sub-early, middle and late pregnancy three groups. This article will be pregnant within 4 months as the early pregnancy group (A group), pregnancy 4 to 6 months for the second trimester group (B group), pregnant 6 months or more for the late pregnancy group (C group). Abdominal disinfection routine disinfection towels, abstracted in aseptic conditions, amniotic fluid 2ml, immediate inspection or temporary refrigerator measured the same day. Instrument for the Wxy-2 type of blood pH, gas analyzer and CY-2-type oxygen meter. Oxygen partial pressure was measured at 38 ℃ constant temperature and air repeatedly distilled water 怍 calibration solution, the amniotic fluid drawn into the syringe isolated air mixing electrode injection readings, the actual amniotic fluid pH (pH), PCO_2 (dioxygen