Hospitalist thot I had mi. After all the different tests for heart attack have come back, no mi. How could they be negative?

Working hypothesis. Sounds like the hospital felt your symptoms were suspicious but if the blood samples and ekgs are negative, mi is ruled out with confidence. Other explanations for your symptoms should be sought.
Worst case. The management of a hospitalized patient is based on developing a list of potential diagnoses based on presenting signs and symptoms. The first task, then, is generally to quickly address the worst case scenario. So for a patient who presents with chest pain, for example, the worst case scenario could be a heart attack. Once that’s ruled out, other diagnoses can be entertained.

Related Questions

Normal ekg, chest xray and d dimer. Also had heart ultrasound come back normal about a year ago. Does this mean I have a slim chance of a heart attack?

Loaded questions. Honestly your normal results from last year are kind of like a snapshot. We need a panoramic picture - are you a healthy weight? Do you exercise regularly? Do you smoke? Do you eat a healthy diet? What is your family history in regards to cardiac disease (genetics)? What is your cholesterol panel? All I can say about your tests is that one year ago you had a normal EKG/chest X-ray/ECHO/d-dimer. Read more...
NO. At your age the change of a MI is highly unlikely, thought not unheard of, More definitive tests are an exercise Stress test or CT angio of the heart / lungs. The gold standard is a Cardiac Angio but at your age totally uncalled for. Read more...
Heart risk factors. Now risk is low, but heart attack risk is low in menstruating females without obesity, familial lipid disorders, autoimmune disease,coagulation issues Marfan's,cocaine or amphetamine use. To maintain a low risk, keep a healthy weight,normal BP, avoid fatty foods, lots of sugars/ junk food/salt, avoid smoking, eat vegetables/fish, exercise, keep hydrated with water and liquids with electrolytes. Read more...