The symptoms of respiratory alkalosis are as follows: 1. Hyperventilation manifestations: deepening and acceleration of breathing; 2. Excitatory manifestations of nerves and muscles: numbness of mouth and lips, numbness of hands and feet, and further development of possible twitching of face and limbs or syncope and convulsions; 3. Primary manifestations: Patients with primary hysteria, generally manifest as numbness of mouth and lips or syncope and hysterical symptoms. Patients with primary hypoxia generally exhibit symptoms of hypoxia. Patients with primary heart failure generally exhibit symptoms of heart failure, telangiectasia, profuse sweating, dyspnea and other symptoms of heart disease.