Diagnostic Evaluation of Lung cancer and COPD
The detection and diagnosis of COPD can be evaluated by performing the following tests: Spirometry, CT scan, and Chest X-ray, Arterial blood gas analysis, Severity, complete blood count, transthoracic ultrasonography and Lung function tests. Spirometry measures the amount of airflow obstruction present and is generally done after the use of a bronchodilator. An Arterial blood gas test measures the oxygen level in blood and the result can show how severe COPD is and whether patient need oxygen therapy. The differential diagnosis is also performed for testing the asthma, congestive heart failure and pulmonary embolism.