試題詳解

47.下列何種狀況，身體可能會有發紺（cyanosis）現象？
(A)貧血患者SaO₂ 82%，deoxygenated Hb 4.2 g/dL
(B)一氧化碳中毒PaO₂= 50 mm Hg，deoxygenated Hb 4 g/dL
(C)心衰竭病患，deoxygenated Hb 6 g/dL
(D)紅血球增多症（polycythemia），血中氧氣含量19.5 mL/dL，deoxygenated Hb 3.5 g/dL