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Cvrn Certification: Ecg Essentials Exam With Guaranteed Accurate Answers
Normal PR interval - ACCURATE ANSWERS 0.12-0.20 seconds 
 
Normal QRS complex - ACCURATE ANSWERS 0.05 - 0.09 seconds 
 
QT interval - ACCURATE ANSWERS 0.40-0.43 
 
V1 Lead - ACCURATE ANSWERS 4th intercostal space RSB; lead needs to be placed here 
 
LA Lead avL - ACCURATE ANSWERS High lateral wall; look here for wide QRS complexes 
 
LL Lead avF - ACCURATE ANSWERS Inferior wall; gives us information about sinus atrial and junctional rhythms 
 
RA Lead avR - ACCURATE ANSWERS RV infarcts and LV ec...