Tetany or tetanic seizure is a medical sign consisting of the involuntary contraction of muscles, which may be caused by disorders that increase the action potential frequency of muscle cells or the nerves that innervate them. Muscle cramps caused by the disease tetanus are not classified as tetany; rather, they are due to a lack of inhibition to the neurons that supply muscles. Tetanic contractions (physiologic tetanus) are a broad range of muscle contraction types, of which tetany is only one.
symptom of Respiratory alkalosis
symptom of Mouth breathing
symptom of Hypoxia 
symptom of Hypotension
symptom of Hyperthermia
symptom of Hyponatremia
symptom of Hyperkalemia
symptom of Acute respiratory distress syndrome