Cyanosis is a condition characterized by a yellowish discoloration of the skin and mucous membranes due to excessive oxygenation.

Cyanosis is the blue coloring of the skin and mucous membranes in the presence of poorly oxygenated blood.

Cyanosis is the primary indication that the client has pneumonia.

Cyanosis is the bluish discoloration of the skin and mucous membranes due to poor peripheral circulation, even in the presence of normal oxygen levels.