ECG artefacts Flashcards
1
Q
What artefact is this
A
Powerline interference
2
Q
What artefact is this
A
Baseline wander
3
Q
What does this ECG show
A
Sinus arrythmia
Irregularly regular
Variation in P-P or R-R intervals
4
Q
What does this ECG show
A
Bradydysrhythmias
Slower than normal
e.g. Sinus arrest – failure of pacemaker to discharge – next fastest pacemaker takes over (AV node, then ventricular cells) after long pause
5
Q
What does this ECG show
A
Bradydysrhythmia
e.g. persistent atrial standstill – no P waves – next fastest pacemaker takes over – slow but regular HR
6
Q
What does this ECG show
A
Tachydysrhythmia
e.g. atrial fibrillation – no P waves
7
Q
What does this ECG show
A
Tachydysrhythmia
Ventricular premature complexes (VPCs) - site of origin within ventricles – wide and bizzare QRST complex interrupts rythym
