A cherry(樱桃) colored flush( 6.>rather than cyanosis, is caused Dy COHb(Carboxyhemoglobin 碳氧血红蛋白
A cherry(樱桃)-colored flush(潮 红), rather than cyanosis, is caused by COHb(Carboxyhemoglobin 碳氧血红蛋白)
The degree of cyanosis is modified by the color of the cutaneous(皮肤的) pigment and the thickness of the skin. as well as by the state of the cutaneous ca pilla aries
The degree of cyanosis is modified by the color of the cutaneous(皮肤的) pigment and the thickness of the skin, as well as by the state of the cutaneous capillaries
The accurate clinical detection of the presence and degree of cyanosis is difficult, as proved by oximetric(血氧定量法的 studies
The accurate clinical detection of the presence and degree of cyanosis is difficult, as proved by oximetric(血氧定量法的)studies
In some instances, central cyanosis can be detected reliably when the sao, has fallen to 85%; in others particularly in dark skinned persons, it may not be detected until it has declined to 75%o. In the latter case examination of the mucous membranes in the oral cavity and the 士上 conjunctivae(结膜) 摸 )rather than examination of the skin is more helpful in the detection of cyanosis
In some instances, central cyanosis can be detected reliably when the SaO2 has fallen to 85%; in others, particularly in darkskinned persons, it may not be detected until it has declined to 75%. In the latter case, examination of the mucous membranes in the oral cavity and the conjunctivae(结膜)rather than examination of the skin is more helpful in the detection of cyanosis
The increase in the quantity of reduced hemoglobin in the mucocutaneous(皮肤粘膜的) vessels that produces cyanosis may be brought about either by an increase in the quantity of venous blood as the result of dilatation of the venules(Jv 静脉) and venous ends of the capillaries or by a reduction in the Sao2 in the capillary blood
The increase in the quantity of reduced hemoglobin in the mucocutaneous(皮肤粘膜的) vessels that produces cyanosis may be brought about either by an increase in the quantity of venous blood as the result of dilatation of the venules(小 静脉) and venous ends of the capillaries or by a reduction in the SaO2 in the capillary blood