Self-perceived heart congestion may be caused by pulmonary occupancy or lung inflammation, or may be induced by the presence of heart failure or coronary angina. To further clarify the diagnosis, patients are advised to have an electrocardiogram, cardiac enzymes, and cardiac ultrasound done during the onset of discomfort to help further clarify the diagnosis. BNP, lung function, lung CT, arterial blood gas analysis, etc. can also be further re-examined to see if the patient has hypoxemia or type II respiratory failure. Patients are advised to first clarify the diagnosis so that the most suitable medication plan can be formulated to better relieve the patient’s current uncomfortable condition. In addition to this, some people with cardiac neurosis or psychosomatic disorders may have similar uncomfortable symptoms. If the symptoms are significantly related to activity, coronary artery disease needs to be considered.