ECGs Flashcards
1
Q
Causes of sinus tachycardia
A
Physiological (pain, aniety)
Pathological (fever, anaemia)
Endocrine (Thyrotoxicosis)
Pharmacological (salbutamol, alcohol)
2
Q
Causes of sinus bradycardia
A
- normal (sleep, athletes, young)
- acute MI
- drugs (B blockers)
- obstructive jaundice
- raised ICP
- sick sinus syndrome
- hypothermia
- hypothyroidism
3
Q
Diagnosing AFib on ECG
A
- p waves absent
- f waves
- atrial rate 350-600 bets/min
- irregular ventricular rate
- ventricular rate 100-180bpm
4
Q
Causes of AFib
A
- IHD
- hypertension
- RHD
- thyrotoxicosis
- alcohol
- CMO
- sick sinus syndrome
- post-cardiac surgery
- chronic pulmonary disease
- idiopathic
5
Q
Features of AV nodal re-entry tachycardia
A
- regular, narrow QRS, 130-250 bpm
- inverted P waves in leads 2,3, and aVF
