ST in medicine means immediate and is used in temporary medical orders, if the patient is in pain or other discomfort and needs the next pain medication, such as tramadol inotropic ST indicates the need to carry out the medical order immediately. ST is also described in the ECG, mainly as ST segment, which can be described as ST segment elevation or ST segment depression, mainly in the ECG of patients suspected of having myocardial ischemia or myocardial infarction or angina pectoris, and also requires myocardial enzymes and coronary angiography if necessary. Further clarification is needed.