#ecg shows NCT HR ~170bpm;
1. STD <2mm ~ retrograde p wave of AVNRT.
2. Pseudo s wave in Inferior Leads.
3. RP < PR with RP interval <70msec.
Adenosine strip rhythm shows;
1. The termination of tachycardia with P wave
2. PR jump - Dual AV nodal physiology.
🔺AVNRT
#ecg in SR