- sinus rhythm/ sinus tach: which is interupted by PACs;
- P wave morphology varies from beat to beat
- AV conduction varies from beat to beat
- rhythm is irregular
- precursor to A. Fib
- vagal manuevers are usually not effective;
- Digoxin is not indicated for the treatment of MAT;
- Beta blockers are to be Avoided; they worsen bronchospasm