答：直立性低血压（orthostatic hypotension）是指在站起时发生的血压突然降低。这种血压降低会使你感觉到头晕或者头重脚轻，甚至晕倒。
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Primary Orthostatic Hypotension 原发性直立性低血压
central orthostatic hypotension 中枢性直立低血压
Neurogenic Orthostatic Hypotension 神经源性直立性低血压
orthostatic hypotension syndrome 直立性低血压综合征
And Orthostatic Hypotension 并体位性低血压
chronic orthostatic hypotension 慢性直立性低血压
·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： postural hypotension
以上来源于: WordNet
The most frequently reported adverse event was orthostatic hypotension.
报道中最常见的不良反应是直立性低血压。
Objective to observe the therapeutic efficacy of nursing intervension in treatment of orthostatic hypotension .
目的观察有针对性的护理措施对直立性低血压的疗效。
Results: ziprasidone efficient, without obvious for 86.7% weight, orthostatic hypotension, dizziness, sleepiness and so on adverse reactions.
结果：齐拉西酮有效率为86.7％，无明显增加体重，有直立性低血压、头晕、嗜睡等不良反应。
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