Address for correspondence: Mykhaylo Sorokivskyy, Danylo Halytsky Lviv National Medical University, Ukraine Phone: +380677837830 Email: email@example.com
Female, 74 years, complains on “irregular heart beat”, episodic lightheadedness and lethargy.
A 7-lead Holter was recorded. Symptoms occurred in the evening hours while at rest, the corresponding tracings are displayed in Figures 1 and 2. Speed of the recording – 25 mm/s.
Figure 1. Electrocardiogram 1
Figure 2. Electrocardiogram 2Please choose ALL descriptions which can be detected on this ECG:
1. Sinus bradycardia
2. Sinoatrial block, second degree type II
3. Prolonged PQ interval
4. Multifocal ventricular extrasystoles
5. Atrial bigeminy
6. Ventricular bigeminy
7. Blocked atrial extrasystoles
8. Aberrant conduction
9. Tachycardia-bradycardia syndrome
10. AV block II
Mykhaylo Sorokivskyy, Rostyslav Kovalchuk, Volodymyr Kulish
Danylo Halytsky Lviv National Medical University, Lviv. Ukraine
Ethics : A patient's consent was obtained for all procedures.
Peer-review: Internal and external
Conflict of interest: None to declare
Authorship: M.S., R.K., V.K. equally contributed to preparation of manuscript and fulfilled authorship criteria
Acknowledgement and funding: None to declare
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