Sinus getting aroused in interest and slow and easy and what disease obscure? 's symptom

Sinus getting aroused in interest and slow and easy and what disease obscure? 's symptom
1.Two degrees of sinuses room blocks and acts as happening 2: 1, 3: When a sinus room is blocked, the heart rate is very slow, the similar sinus is aroused in interest and too slow. The two can distinguish according to the following methods, after atropine injection or physical exertion(can squat, stand up sports) ,The sinus heart rate of sinus the slow one aroused in interest can be accelerated gradually, its heart rate increased quickly and original heart rate do not become multiple relations; And the heart rate of person who blocks room of sinus can double suddenly or increase at double, the sinus room was blocked and disappeared.
2.Making the room spread shrinks and unites law and had not played the room spread to shrink P' wave before one two times before one, it is generally easier to discern. Worthwhile P' wave overlap can be thought the sinus aroused in interest and too slow by mistake when difficult to distinguish on T wave. It distinguishes some is:
( 1) Observe, can find TP' it mixes waves and other T to be different in shape of wave carefully.
( 2) Can look for and has not played P' wave spread from low flat leading and uniting of T wave.
( 3) The electrocardiogram can strengthen the voltage to clock while copying ' Gain) : It is increased to 50- 100ms that the paper speed leaves, overlapping P' unexpected turn of to T wave can appear.
3. 2: The rooms of room 1 conduct and hinder stagnat 2: When the 1 atrio-ventricular block, because the intersection of P and wave spread to play can overlap in the intersection of T and wave, T the intersection of wave and shape happen, increase wide becoming sharp cutting marking, inverting, changing such as being two-way, or is neglected for u wave for this P wave by mistake, and think the sinus aroused in interest and too slow by mistake. It distinguishes some is.
( 1) Observe, can find TP it mixes waves and other T to be different in shape of wave carefully:
( 2) The electrocardiogram can strengthen the voltage to clock while copying ' Gain) ,It is increased to 50- 100ms that the paper speed leaves, overlapping P unexpected turn of to T wave can appear.
( 3) Inject atropines or after changing the heart rate, P wave overlapped in T wave can appear, and can distinguish with u wave.
4.Room ease fight rhythm of the heart room ease fight rhythm of the heart to be relatively rare, the intersection of P' and the intersection of wave and shape and sinus its P of rhythm of the heart obviously different in wave, but if room ease fight, close to the intersection of sinus and room form, by some position, the intersection of P' and wave and sinus the intersection of P and the intersection of wave and difficult difference at the shape its. It distinguishes some is:
( 1) Room ease fight rhythm of the heart to be usually duration long, movement or inject atropine can make sinus the intersection of heart rate and accelerate, room ease fight rhythm of the heart disappear.
( 2) Fight the rule of rhythm of the heart in room ease, it is often arrhythmic with the sinus nature and the sinus has been aroused in interest and slow.
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