1.Palpitations due to an arrhythmia may be accompanied by weakness, dyspnea, or lightheadedness.
由心律失常引起的心悸可伴有虚弱、呼吸困难或头晕。
2.This easily gives way to warm, cool sense of discomfort, even those who feel weak physique dizziness, lightheadedness .
这种方式容易给人上暖下凉的不适感，弱体质者甚至会感到头晕、胸闷。
3.Symptoms of moderate dehydration include extreme thirst; dry appearance inside the mouth; decreased urination, or lightheadedness.
中等程度的脱水症状有极度口渴、口腔内皮干燥可见、尿量很少或头晕。
4.With heart block, patients may experience lightheadedness, fainting or abnormal heartbeats.
伴随这种心脏阻滞，患者也会发生头昏眼花、心跳无力或异常。
5.When blood pressure drops suddenly, the brain is deprived of an adequate blood supply which can lead to dizziness or lightheadedness.
当血压突然下降时，大脑无法获得足够血供，从而导致眩晕或头晕眼花。
6.With torsades de points, patients may experience lightheadedness, fainting or abnormal heart beats.
伴随这种情况，患者会发生头昏眼花、心跳无力或异常。
7.In children, abnormal heart rates may cause fatigue, upset stomach, dizziness and lightheadedness.
对于儿童，心律失常还可能导致疲劳、胃部不适、头晕和头晕等症状。
8.Lightheadedness, weakness, and fainting are symptoms that a heart may be beating too slowly.
心脏如果跳动过缓就可能会出现头晕、身体疲乏、晕厥等症状。
9.Hyperventilation brings on many sensations such as lightheadedness and tightness of the chest that occur during a panic attack.
深度呼吸能产生许多感受，例如：在一次惊恐袭击中的头晕、胸紧。
10.In cases of rupture, lightheadedness or shock may occur.
输卵管破裂是会出现晕厥或者休克。