This type is acyanotic, meaning " not-blue" .

这种类型是没有紫绀的，也就是远心端皮肤不会发蓝。

What we don't have is any deoxygenated blood escaping into the systemic circulation and causing a baby to appear cyanotic, so we call this acyanotic, which means " not blue" .

这时不会有缺氧血流入体循环而引起婴儿出现发绀，所以我们称之为不发绀，即无青紫。