ECG Flashcards
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What does an ECG record
electrical activity of the heart
What is the purpose of the coronary sinus
blood returning from the coronary arteries and veins into the right atrium
What is AF and what does it entail
Atrial Fibrillation and this is when the atria do not contract together
When do the atria relax ( repolarise)
When the ventricles contract ( depolarisation )
What does the P wave represent
Atrial depolarization ( contraction )
What does the QRS wave represent
ventricular depolarization ( contraction )
What does the T wave represent
ventricular repolarization ( relax )
What does the QRS complex represent
time is taken for excitation through the ventricles (0.12)
Where does V1 get placed
4th intercostal space on the right sternal edge
Where does V2 get placed
4th intercostal space on the left sternal edge
Where does V4 get placed
midclavicular line 5th intercostal space
Where does V3 get placed
between V2 and V4
Where does V5 get placed
Anterior Axillary line 5th intercostal space
Where does V6 get placed
Mid Axillary line 6th intercostal space
What lead does V1 and V2 record
Right ventricle