病历摘要女患,20岁。因头晕、血压升高4年,剧烈头痛、视物不清、恶心10天,于1989年2月17日入院。无高血压家族史。4年前体检时发现血压高,当时自觉头晕,未曾介意。此后多次检查身体血压均高。未明确诊断,亦未行任何治疗。10天前无明显诱因突然剧烈头痛、视物不清、恶心、未吐。即到 The medical record summary is female, 20 years old. Due to dizziness, high blood pressure for 4 years, severe headache, blurred vision, and nausea for 10 days, he was admitted to hospital on February 17, 1989. No family history of hypertension. When the physical examination was found 4 years ago, the blood pressure was high. At that time, she felt conscious of dizziness and did not mind. Since then, the body blood pressure has been checked many times. No diagnosis was made and no treatment was performed. There was no obvious cause of severe headache, blurred vision, nausea and vomiting 10 days earlier. That is to