ECG Flashcards
What does ST elevation show on ECG
Normal variant Acute MI (STEMI) Prinzmetal angina Acute pericarditis (saddle shaped) Left ventricular aneurysm
What does ST depression show on ECG
Normal variant
Digoxin toxicity
Ischaemic (horizontal): angina, NSTEMI, acute posterior MI
What does T inversion show on ECG?
V1 – V3: Normal (black and kids), RBBB, RV strain
V2-V5: anterior ischaemia, HCM, subarachnoid haemorrhage, Li
V4-V6 and aVL: lateral ischaemia, LVH, LBBB,
II, III, aVF: inferior ischaemia
What are the signs of PE on ECG
Sinus tachycardia RBBB Right ventricular strain pattern S1Q3T3 Deep S waves in I Pathological Q waves in III Inverted T waves in III
What are the signs of Digoxin effect on ECG
Down-sloping ST depression
Inverted T wave in V5-V6
What are the signs of Hyperkalaemia on ECG
Tall, tented T waves
Widened QRS
Absent P waves
What are the signs of Hypokalaemia on ECG
Small T waves
Prominent U waves
Peaked P waves
What are the signs of HyperCa
Short QT interval
What are the signs of HypoCa
Long QT interval
Small T waves
What are the signs of 1st Degree HB
Prolonged PR interval and unchanging
No missed beats
What are the signs of 2nd Degree HB
- Mobitz 1
PR interval becomes longer and longer until a QRS is missed
- Wenckebach phenomenon
What are the signs of 2nd degree HB
- Mobitz 2
QRSs are regularly missed
- 2:1 block
What are the signs of 3rd degree HB
No impulses are passed from atria to ventricles, P waves and QRSs are seen independent from each other
