Which diagnostic tests are commonly used to diagnose COPD?

The correct answer involves a combination of diagnostic tests that are effectively utilized to diagnose Chronic Obstructive Pulmonary Disease (COPD).

Chest X-rays are commonly used as an initial imaging study to rule out other conditions that may present similarly, such as pneumonia or heart disease, and can show signs of hyperinflation, flattened diaphragm, and other structural changes in the lungs associated with COPD.

Arterial Blood Gases (ABG) provide important information regarding the gas exchange efficiency in the lungs, helping to assess the extent of respiratory failure and guide treatment decisions. This is particularly important in COPD, where oxygen levels may be compromised.

Pulmonary Function Tests (PFT), specifically spirometry, are essential in diagnosing COPD as they measure lung volumes and airflow limitations. They help establish the diagnosis by confirming obstructive patterns of airflow, which is characteristic of COPD.

This combination of tests allows for a comprehensive assessment of the presence and severity of COPD, guiding appropriate management strategies. Other options may include tests that serve different primary purposes and aren't specifically aligned with diagnosing COPD.