The CAT score isn’t an official diagnostic tool, but it can help you and your doctor better understand and discuss the impact COPD has on your life as a whole. The questions on the test don’t ...

One of the aims of the COPD Assessment Test (CAT) is to aid communication between the physician and patient about the burden of chronic obstructive pulmonary disease (COPD) on the patient's life.

As the study authors concluded, “The CAT phlegm score at baseline was 3.47 ± 1.06, whereas after 12 weeks of nebulized NAC it significantly decreased to 2.62 ± 1.30 (P <0.01).