Exam questionKROK 1Medicine · 2013
ECG of a patient displays an abnormally long R wave (up to 0,18 s). This is caused by a decrease in the conduction velocity of the following heart structures:
Answer options
- Left ventricle
- Right ventricle
- Atrio-ventricular node
- Atria
- Ventricles
Correct answer
Ventricles
Explanation
R wave indicates depolarization of the Ventricles. Atria would’ve been P, AV-node would’ve been Q.
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