<unk> s (also known as ) are usually observed on the electrocardiogram of people suffering from hypothermia, though they may also occur in people with high blood levels of calcium (hypercalcemia), brain injury, subarachnoid hemorrhage, damage to sympathetic nerves in the neck, and cardiopulmonary arrest from over sedation, vasospastic angina, or ventricular fibrillation.
Osborn wave
Cannon a waves
Fetal movement
Lucid interval
Epsilon wave
A wave
Theta wave
The U Wave