ECGs Flashcards
ECG lead I measures conduction in what aspect of the heart?
Left lateral
ECG lead II measures conduction in what aspect of the heart?
Left lateral
ECG lead III measures conduction in what aspect of the heart?
Inferior
aVR lead measures conduction in what aspect of the heart?
Right atrium
aVL lead measures conduction in what aspect of the heart?
Left lateral
aVF lead measures conduction in what aspect of the heart?
Inferior
V1 lead measures conduction in what aspect of the heart?
Right ventricle
V2 lead measures conduction in what aspect of the heart?
Right ventricle
V3 lead measures conduction in what aspect of the heart?
Interventricular septum
V4 lead measures conduction in what aspect of the heart?
Interventricular septum
V5 lead measures conduction in what aspect of the heart?
Left ventricle
V6 lead measures conduction in what aspect of the heart?
Left ventricle
Which leads are said to be bipolar?
Red, yellow and green limb leads
What is first degree heart block (also called AV block)?
Slowing of conduction through the AV node meaning ventricles take longer to depolarise
How is first degree/AV block recognised on an ECG?
Prelonged P-R interval of more than 0.2 seconds