A spirometer is a device that assesses your lung function. It measures the amount and speed of air expelled from your lungs.

Oximetry is a procedure used to measure the oxygen level—or oxygen saturation—in the blood.

Pulmonary function tests measure how well your lungs are functioning and are used to help diagnose certain lung disorders.

Peak flow measurement is a procedure that records the amount of air flowing out of your lungs. Peak flow can be measured with either a spirometer or a peak flow meter.

This test may be done to help your health care provider give you a more accurate prognosis or craft your treatment plan.

A chest X-ray is used to examine the chest and the lungs and other organs and structures located in the chest.

CT scans of the chest can provide more detailed information about organs and structures inside the chest than standard X-rays.

Two types of lung scans are available: ventilation scans and perfusion scans. Both use a tiny amount of a radioactive substance.

A lobectomy is a surgical procedure that removes one of the lobes of the lungs.

In a lung transplant, one or both diseased lungs are removed and replaced with a healthy lung from another person.