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1、男孩9岁,是同年级中个子最矮者,因近一年不长高而受到注意,过去很好,智力一般,肌肉发育好,身高在第3百分位以下,其父身高6呎,母身高5呎6吋,患儿之妹7岁比其高2吋,患儿骨龄等于4岁,试述其矮身材最可能的两种原因?2、胎龄33周的婴儿,生后24小时用60%氧,其动脉血气如下:PH7.13,PO_26KPa(45mmHg)、PCO_29.2KPa(70mmHg)、重碳酸盐19mmol/L、碱缺乏-7.9mmol/T,血气有什么异常?其常见原因是什么?
1, the boy is 9 years old, is the shortest person in the same grade, due to the recent year is not long and attention, the past is good, intellectual, muscular, height below the 3rd percentile, his father height 6 Feet, 5 feet 6 inches tall, children younger sister 7 years old than its height 2 inches, children with bone age equal to 4 years old, to discuss the shortest possible figure two reasons? 2, gestational age of 33 weeks of infants, students After 24 hours with 60% oxygen, the arterial blood gas as follows: PH7.13, PO_26KPa (45mmHg), PCO_29.2KPa (70mmHg), bicarbonate 19mmol / L, the lack of base -7.9mmol / T, blood abnormalities? What is the common reason?