ECG-SINUS ARRHYTHMIA (TACHYCARDIA)
From NeuroRehab.wiki
SUMMARY
1. Originates in the SA node, HR > 100/min.
2. Occurs in response to increased O2 demand.
3. Causes: exercise, stress, pain, shock, infection, AMI, drugs.
4. In physiological responses the rate changes gradually.
