These are known as cyanotic congenital heart defects and are often more serious. Hypoplasia of the heart is generally a cyanotic heart defect. Subcutaneous tissues are full of cyanotic venous blood. On inspection, patients may be chronically ill, cyanotic, cachectic and occasionally jaundiced. Patients in shock can appear cold, clammy, and cyanotic. Methyl nitrite is a toxic asphyxiating gas, a potent cyanotic agent. The colour may range from cyanotic blue to reddish blue. The face will typically become engorged and cyanotic (turned blue through lack of oxygen). Campbell identified a number of patients with cyanotic heart disease as possible candidates for surgery. Pink or cyanotic (blue) membrane colors are associated with a greater chance of survival (55%). It causes the patient to become short of breath and cyanotic. Cyanotic is an electronic - industrial band from Chicago, Illinois.