Normal value of CK-MB is 0-8 ng/ml (0-4% of total CK). I think CK-MB is 6.7 in this case.
Chest pain in an old man with H/O DM and HTN strongly suggest coronary artery disease. Normal CK, CK-MB values (though time is not mentioned) rule out myocardial infarction. Acute coronary syndrome could be an initial diagnosis, but normal cardiac enzyme rule out MI so it would be better to say Unstable angina...but this case doesn't look like so. It could be chronic stable angina (but history is not sufficient and pain should not last for 2 hr)
LV strain pattern and 'atypical' chest pain could be due to left ventricular hypertrophy, and this patient also has a H/O HTN. However, not much info about tall QRS complex etc etc.
Anway, I go for left ventricular hypertrophy. or chest pain under investigation (coz more investigation required to make a proper diagnosis
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