Talvik R
Respiration. 1977;34(2):118-20. doi: 10.1159/000193785.
Standard arterial oxygen pressure is a calculated value which must be in arterial blood in the given lung function when all conditions of estimation are standard--PACO2 40 mm Hg, barometric pressure 760 mm Hg and respiratory exchange ratio 0.85. For practical purposes, a nomogram was constructed for estimating SPaO2 and arterial alveolar oxygen difference during breathing with room air. It will give us a possibility of comparing estimations made in different conditions. The mean error for AaDO2 is 0.4 mm Hg, which is acceptable for clinical purposes.
标准动脉血氧分压是一个计算值，当所有估算条件均为标准状态时（肺泡二氧化碳分压40毫米汞柱、气压760毫米汞柱和呼吸交换率0.85），该值必须存在于给定肺功能的动脉血中。出于实际应用目的，绘制了一张列线图，用于估算在呼吸室内空气时的动脉血氧饱和度（SPaO2）和动脉-肺泡氧分压差。这使我们能够比较在不同条件下所做的估算。动脉-肺泡氧分压差（AaDO2）的平均误差为0.4毫米汞柱，这在临床应用中是可以接受的。
