Final answer:
A physician stating a patient was 'admitted for probably MI last evening' indicates that the patient was hospitalized with a suspected myocardial infarction (heart attack). Further tests like ECG and elevated marker levels are needed for confirmation.
Step-by-step explanation:
When a physician writes "admitted for probably MI last evening", they are indicating that the patient was hospitalized due to a suspected myocardial infarction (MI), commonly known as a heart attack, the evening before. This is not a diagnosis but an initial impression that needs to be confirmed with further testing.
Myocardial infarction is a serious condition that occurs when blood flow to a part of the heart is blocked for a long enough time that part of the heart muscle is damaged or dies. Diagnosis is often confirmed by an ECG (electrocardiogram) that shows changes in the ST and Q waves, indicating heart muscle injury, or by blood tests that show elevated levels of certain markers such as creatine kinase MB and cardiac troponin.