History of chest pain
ECG may be normal during episode of pain
Normal or slightly-elevated cardiac enzymes
No precordial Q-waves
Isoelectric or <1mm ST-segment elevation<unk> ' sign present in pain-free state<unk> ' sign during pain free state plus recent history of angina and normal to slightly elevated cardiac enzymes =<unk> s syndrome
ECG may be normal during episode of pain<unk> ' sign during pain free state plus recent history of angina and normal to slightly elevated cardiac enzymes =<unk> s syndrome
Two T-wave Characteristics (at times terms are reversed in the literature or labeled Type I and II):
Type A (25%)
Biphasic T-wave in V2/V3
Type B (75%)
Deep, symmetrically inverted T-waves in V2/V3
Biphasic T-wave in V2/V3
Deep, symmetrically inverted T-waves in V2/V3

Note<unk>  criteria should not be applied to  patients with LVH
Wellens' syndrome
High voltage
Dressler's syndrome
PE
Twiddler's syndrome
RBBB
Ménière's disease
Hypokalemia