COPD Assessment Test Calculator

Assess COPD impact using the CAT questionnaire and determine GOLD classification for treatment guidance.

COPD Assessment Test (CAT)

For each item, select a score from 0-5 where the left statement represents 0 and the right statement represents 5.

Question 1

I never coughI cough all the time

Question 2

I have no phlegm (mucus) in my chest at allMy chest is completely full of phlegm (mucus)

Question 3

My chest does not feel tight at allMy chest feels very tight

Question 4

When I walk up a hill or one flight of stairs I am not breathlessWhen I walk up a hill or one flight of stairs I am very breathless

Question 5

I am not limited doing any activities at homeI am very limited doing activities at home

Question 6

I am confident leaving my home despite my lung conditionI am not at all confident leaving my home because of my lung condition

Question 7

I sleep soundlyI don't sleep soundly because of my lung condition

Question 8

I have lots of energyI have no energy at all

Exacerbation History (Past 12 Months)

Moderate Exacerbations

Treated with antibiotics/steroids

Hospitalizations

Severe exacerbations

mMRC Dyspnea Scale

Grade 0: I only get breathless with strenuous exerciseGrade 1: I get short of breath when hurrying on level ground or walking up a slight hillGrade 2: On level ground, I walk slower than people of the same age because of breathlessness, or have to stop for breath when walking at my own paceGrade 3: I stop for breath after walking about 100 meters or after a few minutes on level groundGrade 4: I am too breathless to leave the house or I am breathless when dressing

CAT Score

16/40

Medium Impact

GOLD Group

High symptoms, low exacerbation risk

Cough

2/5

Phlegm

2/5

Chest Tightness

2/5

CAT Interpretation

COPD has a medium impact. You likely experience symptoms most days.

Symptoms: High

Exacerbation Risk: Low

Pharmacologic Recommendations

• LABA + LAMA combination preferred
• Single long-acting bronchodilator if symptoms mild
• Consider pulmonary rehabilitation

Non-Pharmacologic Recommendations

• Smoking cessation (if applicable) - most important intervention
• Annual influenza vaccination
• Pneumococcal vaccination
• COVID-19 vaccination
• Pulmonary rehabilitation program

CAT Score Ranges

0-10: Low Impact

11-20: Medium Impact

21-30: High Impact

31-40: Very High Impact

GOLD 2023 ABE Classification

Group A: Low symptoms (CAT <10) + Low exacerbation risk

Group B: High symptoms (CAT ≥10) + Low exacerbation risk

Group E: Any symptoms + High exacerbation risk (≥2 moderate OR ≥1 hospitalization)

Disclaimer: The CAT is a patient-completed questionnaire to assess COPD impact. GOLD classification also requires spirometry (FEV1) for severity staging. Treatment decisions should be made in consultation with a healthcare provider. This tool does not replace pulmonary function testing.

COPD Assessment Test Calculator

COPD Assessment Test (CAT)

Exacerbation History (Past 12 Months)

mMRC Dyspnea Scale

CAT Interpretation

Pharmacologic Recommendations

Non-Pharmacologic Recommendations

CAT Score Ranges

GOLD 2023 ABE Classification

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