Chest pain

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1. ECG in all males >39 and females> 34

2. DDx:

    1. Pericarditis: st-elevation in all leads except AVR

    2. Aortic dissection: type of pain, HTN

    3. Pulmonary embolism: high HR, high RR, chest pain, S1Q3T3

    4. pneumothorax: dyspnea, abnormal auscultation

    5. esophageal rupture: post vomiting

3. in ECG:

    1. st-elevation ≥ 2mm in precordial leads and ≥ 1mm in other leads at least in 2 leads representative of one area

    2. tall R in V1 and V2 in posterolateral MI

    3.  Pathologic q wave: widening > 1 mm

    4. LBBB + MI: (Scarbosa rules)

        1. >10mm same arrows as QRS

        2. >5mm against arrows of QRS

        3. st-depression >1mm in V1-V3

4.