Page 63 - Basic Monitoring in Canine and Feline Emergency Patients

Table 3.5. Continued.
VetBooks.ir Question Options What does this mean? Examples with rhythm diagnosis
QRS–T
Abnormal electrical
waveforms
(ventricular origin),
abnormal impulse origin
abnormal ventricular
conduction (bundle
branch block), or
abnormal ventricular
mass/volume
(enlargement or
hypertrophy) Normal sinus rhythm with frequent ventricular premature
complexes (single VPCs and short paroxysm of
ventricular tachycardia)

Normal sinus rhythm with left bundle branch block

Sinus arrhythmia with right axis deviation (secondary to
right ventricular hypertrophy)
When do Early (before Suggests ventricular
abnormal next expected premature
QRS sinus beat) complexes
complexes
occur?

Normal sinus rhythm with ventricular premature
complexes (single VPC and ventricular couplet)
Late (after a long Suggests ventricular
pause) escape complexes

3rd degree AV block with ventricular escape rhythm
At approximately Suggests accelerated
the same time idioventricular
as the next rhythm
expected sinus
beat
Accelerated idioventricular rhythm

Electrocardiography 55