First of all, it is important to know that the lungs include both the lungs and the airways. To check the lungs, a routine physical examination with chest X-ray, blood count and chest CT is sufficient. If there are other problems, such as chest tightness, shortness of breath, and wheezing, other tests may be added, such as pulmonary function. If there is a heart problem involving the lungs, an electrocardiogram or cardiac ultrasound may be done, depending on the patient’s condition and current symptoms. If it is just a physical examination, routine blood tests and chest x-rays are sufficient. If there are different accompanying symptoms, then other tests will be chosen.