QuestionSBA
QuestionChoice
This is correct. Classic ECG features of AF include tachycardia, an irregularly irregular rhythm and the absence of p-waves. An irregular peripheral pulse may also be identified. Symptoms include palpitations as well as chest pain, shortness of breath and syncope in some cases.
10025910
a
Atrial fibrillation (AF)
QuestionChoice
This is incorrect. On an ECG, ventricular tachycardia is associated with regular but broad QRS complexes as well as a fast rate (>100 beats per minute). It can occur with a pulse or it may be pulseless.
10025912
c
Ventricular tachycardia
QuestionChoice
This is incorrect. Ventricular fibrillation is an irregular broad complex tachycardia. It is a medical emergency, and patients will not have a pulse.
10025913
d
Ventricular fibrillation
QuestionChoice
This is incorrect. Typical ECG findings of atrial flutter include flutter waves, or a characteristic 'saw tooth' like pattern, as well as tachycardia.
10025911
b
Atrial flutter
QuestionChoice
This is incorrect. An ECG showing a narrow QRS complex, irregularly irregular rhythm and absent p waves is consistent with atrial fibrillation.
10025914
e
Normal variation
Concept
Chapter
2693
3714
Atrial fibrillation
Topic
134
Cardiology
17580
A 55 year old woman presents to her GP with a 5 day history of palpitations. An ECG shows tachycardia of 120 beats per minute. The rhythm is irregularly irregular. There are no identifiable P waves, and the QRS complex is narrow.

Which of the following is the most likely underlying diagnosis?
a