Female, 78 years old, complains on weakness, dizziness, loss of consciousness several times during last week.
Fragment of electrocardiogram (ECG) was recorded using 3 leads Holter monitor at the evening during the rest (Fig.1.).
Speed of the recording – 25 mm/s.
The correct description of this ECG is:
A) Atrioventricluar (AV) block I degree
B) AV block II degree, Wenckebach
C) AV block II degree, 2:1
D) AV block II degree, Mobitz
E) AV block II degree, advanced
F) AV block III degree, complete
Figure1. Fragment of the 3-channel Holter monitoring
Mykhaylo Sorokivskyy, Ulyana Chernyaha-Royko
Danylo Halytsky Lviv National Medical University,
Lviv Regional Cardiology Center, Lviv, Ukraine
Conflict of interest: None to declare
Authorship: M.S. and U.C-R. equally contributed to preparation of quiz
Acknowledgement and funding: None to declare