Lung problems can also be characterized by rapid heartbeat under certain circumstances, especially in the case of serious clinical lung infections, such as severe inflammatory reactions of the lung mucosa due to pathogens such as bacteria, viruses, mycoplasma, chlamydia, fungi, and even Mycobacterium tuberculosis. Lungs will appear ventilation function, ventilation function, and even cause obvious respiratory failure involved in cardiomyocytes, resulting in cardiac insufficiency caused by heart failure, which will be manifested as palpitations, rapid heartbeat symptoms. In addition, due to the seriousness of the infection may also cause toxic myocarditis, which can also lead to increased heart rate, clinical testing of cardiac enzyme spectrum, monitoring of dynamic electrocardiogram to clarify the condition and cause of the disease.