血中Hb含量低于多少时,即使重度缺氧,亦难发现发绀()
血中Hb含量至少低于多少时,即使重度缺氧,亦难发现发绀A.<50g/LB.<60g/LC.<70g/LD.<80g/LE.<90g/L
点击查看答案
血中Hb,含量低于多少时,即使重度缺氧,亦发现发绀A.<90g/LB.<80g/LC.<70g/LD.<60g/LE.<50g/L
重度贫血指HbA、重度贫血指HbA、B、30~60g/LC、70g/LD、60~90g/LE、80g/L
血中Hb含量低于多少时,即使重度缺氧,也难发现发绀A.B.C.D.E.
血中Hb含量低于多少时,即使重度缺氧,亦难发现发绀A.%50g/L B.%60g/L C.%70g/L D.<80g/L E.<90g/L
血中还原血红蛋白至少达多少时,皮肤黏膜可出现发绀A.>70g/L B.>65g/L C.>60g/L D.>55g/L E.>50g/L
重度贫血的血红蛋白含量为()A、<90g/LB、<70g/LC、<60g/LD、<50g/LE、<40g/L