带着媳妇儿奔小康
血气分析正常值?
动脉血气分析参考值： pH：7.40（7.35--7.45）。 二氧化碳分压（PCO2):0.47--6.00kPa(35--45mmHg). 氧分压（PO2）：10.66--13.33kPa(80--100mmHg)。 实际碳酸氢盐（AB）：22--27mmol/L（22--27mEq/L）。 碱剩余（BE）：-3--+3mmol/L（-3--+3mEq/L）。 标准碳酸氢盐（SB）：22--27mmol/L（22--27mEq/L）。 氧饱和度（SO2）：95%或更高。
酸碱失衡的一道题 动脉血气分析，ph7.47,二氧化碳分压30mmhg,BE-2.1mmol/L，
失代偿性碱中毒。。。。后面两个是正常值。。。
首先您记住正常值：
*
看PH值：7.35~7.45 ? ? ? ? ?（ 超过此范围为失代偿，7.45为碱中毒）
*
看pa co2： 35~45mmHg ? ?（＞45为呼酸，3为代碱，27为代碱,<>
也就是说1决定是代偿性or失代偿性，2决定呼吸性 ? ?酸中毒or碱中毒，3决定代谢性 ?碱中毒or酸中毒。一般来说互不干扰。
纯手打，如果不懂可以多那几个题目，我解释给你看。
at是什么意思?
at
英[?t] 美[?t,?t]
prep. （表示位置） 在; 在（某时间或时刻）; 以，达; 向，朝;
英语中course 是什么意思
【course】的意思：
1. 当然(在英语口语中常用于代替 of course)
Course is often used in the expression 'of course', or instead of 'of course' in informal spoken English. See 见 of course .
2. N-UNCOUNT (尤指船或飞机的)航向，航线，路线
The course of a vehicle, especially a ship or aircraft, is the route along which it is travelling.
Aircraft can avoid each other by going up and down, as well as by altering course to left or right...
飞机可以通过上下升降和左右移动改变航线来避免相撞。
The tug was seaward of the Hakai Passage on a course that diverged from the Calvert Island coastline.
托船驶离卡尔弗特岛海岸朝哈凯航道驶去。
3. N-COUNT 行为方式;处理方式
A course of action is an action or a series of actions that you can do in a particular situation.
My best course of action was to help Gill by being loyal, loving and endlessly sympathetic...
我能给吉尔的最大帮助就是对他忠诚、关爱他并且永远满怀同情之心。
He must fall on his sword. That's the only course left open to him...
他必须面对失败，他唯有这一条路走。
Vietnam is trying to decide on its course for the future.
越南正在努力确定其未来发展的方向。
4. N-SING 进程;发展的方向
You can refer to the way that events develop as, for example, the course of history or the course of events .
...a series of decisive naval battles which altered the course of history...
改变历史进程的一系列决定性的海战
In the natural course of events cows would wish to be milked more than twice a day...
按照事情发展的自然规律，母牛每天应该挤奶两次以上。
His adult life mirrored the downward course of his father's life.
他成年后的生活反映出了他父亲的生活在走下坡路。
5. N-COUNT access course; correspondence course; refresher course; sandwich course; (某科目的)课程，讲座
A course is a series of lessons or lectures on a particular subject.
...a course in business administration...
企业管理课程
I'm shortly to begin a course on the modern novel.
我不久将要选修一门现代小说课程。
6. N-COUNT 疗程
A course of medical treatment is a series of treatments that a doctor gives someone.
Treatment is supplemented with a course of antibiotics to kill the bacterium...
治疗期间辅以一个疗程的抗生素注射来杀灭细菌。
She went to her doctor, who offered to put her on a course of tranquillizers.
她去看医生，医生建议她服用一个疗程的镇静剂。
7. N-COUNT 一道菜
A course is one part of a meal.
The lunch was excellent, especially the first course.
午餐很棒，尤其是第一道菜。
...a three-course dinner.
有3道菜的晚餐
8. N-COUNT (体育)比赛场地;高尔夫球场
In sport, a course is an area of land where races are held or golf is played, or the land over which a race takes place.
Only 12 seconds separated the first three riders on the Bickerstaffe course...
比科斯达夫赛场上的前3名骑手之间只差12秒。
In July comes the Tour de France, when 200 cyclists cover a course of 2,000 miles.
7月份迎来了环法自行车赛，200名自行车选手要骑行2,000英里的赛程。
9. N-COUNT 河道
The course of a river is the channel along which it flows.
Romantic chateaux and castles overlook the river's twisting course.
富有浪漫气息的庄园和城堡俯瞰着蜿蜒的河道。
10. VERB 快速地流动;奔流
If a liquid courses somewhere, it flows quickly.
The tears coursed down his cheeks...
他泪如雨下。
When you're sitting still, you need less blood coursing through your arteries.
静坐时动脉血液流动较缓。
