QuestionSBA
QuestionChoice
This condition is characterised by uncoordinated atrial contraction at a rate of around 300-600 bpm. Patients may have palpitations, dyspnoea, chest pain or dizziness and an irregularly irregular pulse in atrial fibrillation.
10000121
a
Atrial fibrillation
QuestionChoice
This is a genetic disorder of sodium channelopathies. It tends to occur in male Southeast Asian patients who may have sudden cardiac death.
10000125
e
Brugada syndrome
QuestionChoice
This is the backflow of blood across the mitral valve. Patients often present with dyspnoea, fatigue and weakness.
10000124
d
Mitral regurgitation
QuestionChoice
This is a common valvular pathology where the aortic valve becomes narrowed. It is associated with a classic triad of heart failure, syncope and angina. A slow rising pulse and narrow pulse pressure are other typical features.
10000123
c
Aortic stenosis
QuestionChoice
This is a narrow complex tachycardia with atrial activity of > 300 bpm. Symptoms include palpitations, dizziness and chest pain, however, on ECG, a saw-tooth pattern is seen.
10000122
b
Atrial flutter
Concept
Chapter
2693
3714
Atrial fibrillation
Topic
134
Cardiology
12571
A 70-year-old female presents to her GP as she feels a ‘fluttering’ in her chest and has been feeling dizzy more regularly. She has a past medical history of hypertension and on examination, her pulse was irregularly irregular. An ECG shows an irregularly irregular rhythm with no P waves.

Which of the following is the most likely diagnosis?
a