우선 두번째 심전도의 lead 3에서 T wave inversion이 보이는게 맞습니다.

다만, lead 3에서 T wave inversion은 normal variant라고 보시면 되고, 이정도 소견은 EKC가 깨끗하다고 생각해도 됩니다.

다음은 T wave inversion에 대한 내용입니다.

출처 : https://litfl.com/t-wave-ecg-library/
Inverted T waves are seen in the following conditions:

• Normal finding in children

• Persistent juvenile T wave pattern

• Myocardial ischaemia and infarction (including Wellens Syndrome)

• Bundle branch block

• Ventricular hypertrophy (‘strain’ patterns)

• Pulmonary embolism

• Hypertrophic cardiomyopathy

• Raised intracranial pressure

** T wave inversion in lead III is a normal variant. New T-wave inversion (compared with prior ECGs) is always abnormal. Pathological T wave inversion is usually symmetrical and deep (>3mm).