The Cardiac Axis Flashcards
the normal axis is from ___ to ___
-30 to +90
Right axis deviation is from ___ to ___
+90 to +180
Left axis deviation is from ___ to ___
-30 to -90
Extreme axis deviation is from ___ to ___
-90 to -180
PE causes __ axis deviation
Right axis deviation
Wolf-Parkinson White syndrome causes __ axis deviation
- Right axis deviation when there is a L sided accessory pathway
- Left axis deviation when there is a R sided accessory pathway
__ axis deviation is normal in an infant <1yr/o
Right axis deviation
right ventricular hypertrophy causes __ axis deviation
Right axis deviation
left posterior hemiblock causes __ axis deviation
right axis deviation
lateral MI causes __ axis deviation
right axis deviation
chronic lung disease/ cor pulmonale causes __ axis deviation
right axis deviation
Leads in Right Axis Deviation
Lead I is negative and Lead aVF is positive
Leads in the Normal Axis
Lead I and II are positive
Leads in Left Axis Deviation
Lead I is positive and Lead II is negative
congenital causes of left axis deviation
osmium primum
Atrial Septal Defect
Tricuspid atresia
