S女士,60岁,具有高血压病史,其服用药物的效果并不是很好。一天晚上电话响起时,她正在躺椅上看报纸。于是她起身前往电话机。但就在这时,她开始感到头晕,因而就停了下来并扶着厨房的餐桌。此后她就不记得接下来发生了什么事情。第二天早上,一位经常和S女士喝咖啡的邻居发现她躺在地板上,语 Ms. S, age 60, has a history of hypertension and the effect of her medication is not good. She was reading a newspaper on a couch when the phone rang one night. So she got up and went to the phone. But just then, she began to feel dizzy, so she stopped and held the kitchen table. Then she did not remember what happened next. The next morning, a neighbor who used to drink coffee with Ms. S often found her lying on the floor