当血液循环中,还原血红蛋白的绝对量超过多少时出现紫绀:( )A.50g/LB.100g/LC.70G/LD.40g/LE.61g/L

当血液循环中,还原血红蛋白的绝对量超过多少时出现紫绀:( )

A.50g/L

B.100g/L

C.70G/L

D.40g/L

E.61g/L


相关考题:

血中还原血红蛋白至少达多少时.皮肤粘膜可出现紫绀 ( )A.70g/LB.65g/LC.60g/LD.55g/LE.50g/L

皮肤粘膜发绀时.其毛细血管血液中还原血红蛋白量超过A.50g/LB.40g/LC.30g/LD.20g/LE.10g/L

血红蛋白进行性下降或()是危险性上消化道出血的预测指标 A.50g/LB.60g/LC.70g/LD.80g/LE.90g/L

紫绀发生的决定性因素是A.红细胞比积降低B.血压过低C.血液中还原血红蛋白的绝对量增高D.心脏有右至左的分流E.肺功能严重减退

血中还原血红蛋白至少达多少时,皮肤粘膜可出现紫绀A.>70g/LB.>65g/LC.>60g/LD.>55g/LE.>50g/L

当毛细血管血液中还原型血红蛋白达到多少浓度时患儿出现发绀症状A.50g/LB.10g/LC.30g/LD.40g/LE.20g/L

当毛细血管内还原血红蛋白超过多少时可出现发绀:A.30g/LB.20g/LC.50g/LD.100g/L

当血中高铁血红蛋白量达到多少可出现紫绀()A.50g/LB.40g/LC.30g/LD.20g/L

当毛细血管血液的还原血红蛋白超过下列何值,皮肤粘膜可出现发绀:A.50g/LB.60g/LC.30g/LD.40g/L