ARS: 12-Lead ECG Interpretation Flashcards
1
Q
If there is a wide QRS, then begin to evaluate for __________.
A
bundle-branch block
2
Q
A wide QRS that is positive in the right-sided leads and negative in the left-sided leads is indicative of __________.
A
right bundle-branch block
3
Q
In addition to increased Q wave amplitude in V5 and V6, left ventricular hypertrophy will also display _____________.
A
increased negative S wave signal amplitude in V1
4
Q
Normally, aVR is small and slightly negative. If there is a high S wave in aVR, begin to suspect ___________.
A
right ventricular hypertrophy
5
Q
A normal QRS is only ______ wide.
A
two boxes
6
Q
Pacemakers lead to _________ on an EKG.
A
spikes
7
Q
Hypokalemia is revealed by ____________.
A
U waves, flattening of the T wave, and prolonged QT interval
