In patients with long-term chronic hypotension, there are no obvious symptoms of syncope. If a patient develops transient hypotension, a significant drop in blood pressure within a short period of time or significant syncope, the patient will experience dizziness with transient blackness in front of the eyes, blurred vision, rotating vision, and nausea and vomiting. In patients with a previous history of coronary artery disease, there is also chest tightness, shortness of breath, palpitations, precordial discomfort, and, in severe cases, dyspnea. In hypotensive syncope, the patient usually has cold extremities, a rapid pulse rate and pallor after a drop in blood pressure, and in severe cases, transient syncope with loss of consciousness.