cyanosis 發紺

cyanosis
繁：發紺
简：发绀

當去氧血紅素的濃度達到5.0 g/dL以上時，就會開始發紺，但常常被忽略的是，這個數字是從動脈及周圍靜脈的血氧濃度估計來的。

南韓目擊者曝人都變藍色了！資深急診醫師：稱之「發紺」血氧濃度不夠造成（2022年10月30日）。中天新聞網，取自https://www.ctinews.com/news/items/D0xd51JEnY

The faces of the people on the ground were past being pale and on the verge of cyanosis. 

The faces of the people on the ground were past being pale and on the verge of cyanosis. (2022, Oct 31). Koreaboo.Retrieved from https://www.koreaboo.com/news/korean-doctors-scene-recalls-horror-crowd-surge-desperate-rescue-attempts/