CVS 1- ECG Flashcards
What is the findings of the following ECG?
Non-sinus Tachycardia
Sinus Bradycardia
Delta wave - from Wolfen Parkinson White syndrome
105 bpm
Which of the following is NOT a cause of a wide QRS complex?
A Bundle branch block
B AV block
C pacemaker rhythm
D Ventricular Tachycardia
B
MI
Sinus Tachycardia
Which arrhythmia is associated w/ sawtooth waves?
Atrial flutter
What is almost always present in conjugation with atrial flutter?
AV block
Atrial fibrillation (absence of p wave)
ECG findings of non-sinus Tachycardia (aka supra-ventricular Tachycardia)
Rhythm: regular
QRS: normal
P waves : present however, buried in preceding T waves and difficult to see
Second degree AV block: type l Morbitz
ECG findings of an Atrial flutter, including leads of a -ve/ +ve directed saw-tooth atrial deflections
- Absence of P waves
-ve deflections: leads ll, lll, aVF
-ve deflections: leads V1
ECG findings of Acute Atrial fibrilation
- Absence of P waves
- irregularly regullar QRS complexes
- No Organized electrical activity in the atria
Epi of Wolff-Parkinson-White Synd. + patho
Epi –> men in teenage yrs / early 20s
patho–> accessory pathway (Bundle of Kent), results in depolarization of the ventricles
condition is percipitated by exercise
EEG findings of Wolff-Parkinson-White syn.
1) Short PR interval
2) Delta wave
3) Broad QRS
ECG findings of 1 AV Block
rythym: regular
PRI is > 0.2 sec
QRS: normal
ECG findings of 2 AV Block- Morbitz l
- successively longer PRIs until one QRS fails
ECG findings of 2 AV Block- Morbitz ll
- PR intervals do not lengethen
- sudden drop of QRS
ECG findings of 3 AV Block
Atria and Ventricles are depolarizing independently
Loc of RBBB
Anterior myocardial infarct (occures after pulmonary embolism)
Lead changes in RBBB
Leads V1 & V2 –> “slurred S wave”
Lead changes in LBBB
Leads V1,V2,V3 –> negative QRS
Leads V5,V6 or lead l –> ‘blunted positive QRS
Clinical findings of Bradycardia-tachycardia (“tachy-brady syndrome”)
Alternating slow & fast heart rhythms
