Welch Allyn Cardioperfect Workstation, PEDMEANS ECG Interpretation Module - Physicians - User Manual - Manual (Page 36)

CardioPerfect Workstation
PEDMEANS ECG Interpretation Module Physicians Manual
DIR 80015051 Rev. C 36 / 55
3.9 Group 6: Regular rhythms with P/QRS > 1.0 and PR range

30 ms
Say: “atrial flutter”
if: shortest PP interval < 270 ms
Say:
“atrial tachycardia”
if: 270

shortest PP interval < 370 ms
Say:
“sinus tachycardia”
if: 370

shortest PP interval < LLN
Say:
“sinus rhythm”
if: shortest PP interval > ULN
Say:
“with second degree AV block at N:1 conduction ratio”
if: atrial rate is an integer multiple N of ventricular rate
Say:
“with advanced AV block at variable conduction ratio”
if: atrial rate is not an integer multiple of ventricular rate