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A series of nerve bundles or groups enter down through the heart through the middle wall (septum)and split to come back upwards towards both the right and left chambers of the heart. If trauma, or more likely in injury due to small areas where the heart muscle has died, occurs there may be an interruption in the ability for nerve pulses to go past this point. This changes the regular (normal sinus) rhythm and speed of the heart beating into an irregular arrhythmia and is often associated with slowing of the heart rate.

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What does RSR in ECG mean?

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When the heart is functioning properly the sinus node controls the firing of action potential that contract the heart. When the sinus node dominates the heart will contract in a synchronized and effective rhythm This is called sinus rhythm.


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A sinus rhythm originate in?

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A sinus rhythm originates in the?

Sinus nodes (sa nodes)


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Sinus rhythm refers to a heart rhythm that is controlled by the depolarisation of the sinoatrial node. You can also have focal ectopic rhythms where random areas of the heart depolarise first and you can have supraventricular rhythms.


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Nerve impulses come through the sinus node of the heart to the bundle of His and then move into the right and left bundle branches.


Can sinus rhythm be pulseless?

Yes, sinus rhythm can be pulseless in certain conditions, such as in cases of severe hypotension or cardiac arrest. While sinus rhythm indicates that the heart's electrical system is functioning normally, it does not guarantee effective blood circulation. If the heart is not generating sufficient contraction strength or if there is severe obstruction in blood flow, a person may have a sinus rhythm without a detectable pulse. This condition requires immediate medical intervention.


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defibrillators


What does the medical abbreviation SA-ECG mean?

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