A 62 year patient was at a dentist’s and suddenly there appeared dyspnea and hacking cough, sense of progressing asphyxia. The patient’s condition is getting progressively worse; number of respiratory movements reached 30/min, acrocyanosis became more evident, there appeared gargling breathing, oral cavity excretes a lot of albuminoid sputum. Psychomotor agitation and arterial hypertension are present. What pathological state is it?