KROK 1 2020 – Question 68 · KROK (Medicine) · Physiology
The patient’s ECG shows that in the second standard lead from the extremities the P waves are positive, their amplitude is 0.1 mV (norm is 0.05-0.25 mV), duration 0.1 seconds (norm is 0.07-0.10 seconds). It can be concluded that the following process occurs normally in the cardiac atria:
- A. Depolarization
- B. Relaxation
- C. Excitation
- D. Contraction
- E. Repolarization
Hint
Ask which electrical process in the atrial wall is recorded as the P wave on a surface ECG.
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