Asthma Control Test: 5 Questions To Assess Your Control

Asthma is a long-term condition that affects around 5.4 million people in the UK, with similar prevalence globally, impacting daily life through symptoms like wheezing, shortness of breath, and chest tightness. While inhalers and medications effectively control symptoms for most, many individuals remain unsure if their asthma is truly well-managed. The

Asthma Control Test (ACT)

provides a quick, evidence-based method to assess asthma control over the past four weeks, empowering patients to discuss results with healthcare providers.

Developed by asthma specialists and validated through extensive research, the ACT is recommended by organizations like the National Asthma Council and used worldwide in clinical practice. It focuses on real-life impacts such as activity limitations, nighttime awakenings, and reliever inhaler use, offering a score from 5 to 25. Regular use helps track treatment effectiveness and guide adjustments.

What is the Asthma Control Test?

The

Asthma Control Test (ACT)

is a standardized, self-administered questionnaire comprising five questions designed for adults and children aged 12 and older. It evaluates asthma control retrospectively over the last four weeks, covering key domains: daytime symptoms, nighttime awakenings, activity limitations, reliever medication use, and overall self-assessment of control.

Unlike lung function tests like spirometry, which measure peak flow or FEV1, the ACT captures the subjective burden of asthma on quality of life. Studies confirm its reliability, validity, and sensitivity to treatment changes, making it superior to many alternatives. For instance, a 2016 review highlighted the ACT as the most researched tool, with the childhood version (C-ACT) showing similar robustness.

Asthma prevalence underscores the need: In the US, over 25 million people have asthma, with 50-60% experiencing poor control leading to complications like exacerbations and infections. Poor control manifests as frequent symptoms—chest tightness, coughing, wheezing, shortness of breath—disrupting sleep, work, and exercise.

Take the test

Complete the ACT by answering these five questions based on your experiences over the past four weeks. Each response is scored from 1 (worst) to 5 (best). Add your scores for a total out of 25.

Question	1	2	3	4	5
1. How often did your asthma symptoms (wheezing, coughing, shortness of breath, chest tightness) keep you from doing regular activities (e.g., work, school, exercise)?	All the time	Most of the time	Sometimes	Rarely	Not at all
2. During the past 4 weeks, how often have you had shortness of breath?	More than once a day	Once a day	3-6 times a week	1-2 times a week	Not at all
3. During the past 4 weeks, how often did your asthma symptoms (wheezing, coughing, shortness of breath, chest tightness, etc.) wake you up at night or earlier than usual in the morning?	4 or more nights a week	2 to 3 nights a week	Once a week	1-2 times	Not at all
4. During the past 4 weeks, how often did you use your rescue inhaler or nebulizer medication (such as albuterol)?	3 or more times per day	1-2 times per day	2-3 times per week	Once a week or less	Not at all
5. During the past 4 weeks, how would you rate your asthma control?	Not controlled at all	Poorly controlled	Somewhat controlled	Well controlled	Completely controlled

Step 1: Circle your score for each question.
Step 2: Write the score in the box and total them.
Step 3: Use the results section below to interpret.

Understanding your results

Your total ACT score determines asthma control level. Higher scores indicate better management.

• 20–25:

  Well controlled.

  Continue current treatment, maintain good inhaler technique, and attend regular reviews. No symptoms should limit daily activities.
• 16–19:

  Partly controlled.

  Symptoms may be more frequent than ideal. Schedule a review with your doctor or asthma nurse to optimize therapy.
• 5–15:

  Poorly controlled.

  Urgent action needed—book an appointment immediately. Risk of exacerbations is high.

Equivalent interpretations include: 25 (complete control), 20-24 (good), 16-19 (poor), ≤15 (very poor). Scores ≥20 correlate with guideline-defined control.

For children 4-11, use the Childhood ACT (C-ACT): Child answers 4 questions (score 0-20), parent adds 3 (0-7), total 0-27. ≥20 indicates control.

Why asthma control matters

Maintaining good asthma control prevents disruptions: no nighttime symptoms, no activity limits, rare reliever use, fewer exacerbations. Poor control raises risks of hospitalization, lost productivity, and reduced quality of life. Globally, uncontrolled asthma affects millions, with CDC data showing 50-60% of patients uncontrolled.

Regular ACT monitoring tracks progress. Monthly testing reveals if treatments like inhaled corticosteroids (ICS) or bronchodilators need adjustment. FeNO tests may complement, indicating ICS adherence. Evidence shows ACT-guided care improves outcomes over symptom-based alone.

Comparisons:

Test	Questions	Ages
ACT	5	≥12
C-ACT	7	4-11
ACQ	7	6+
AQLQ	32	Adults/Children

What to do if your score is low

A low score signals suboptimal management. Actions:

• Book a review: Share your ACT printout with your GP, asthma nurse, or specialist.
• Check inhaler technique: Poor technique halves drug delivery—use spacers, get demonstrations.
• Review triggers: Avoid allergens, smoke, exercise-induced factors.
• Adherence: Take preventers daily; track reliever use.
• Lifestyle: Exercise, weight management, flu vaccines aid control.

Doctors may step up therapy: increase ICS, add LABA, or biologics for severe cases. Track peak flow alongside ACT.

When to seek urgent help

ACT complements but doesn’t replace emergency recognition. Seek immediate care if:

• Reliever ineffective after 10 puffs.
• Severe breathlessness, unable to speak.
• Lips/blue fingers, confusion.
• Peak flow <50% best.

Call 999 or go to A&E. Exacerbations kill—prompt action saves lives.

Frequently Asked Questions (FAQs)

Q: How often should I take the Asthma Control Test?

A: Monthly or before reviews to monitor control and treatment response.

Q: Is there a test for children?

A: Yes, C-ACT for ages 4-11, scored 0-27 (≥20 well-controlled).

Q: What if my score is borderline, like 19?

A: Treat as partly controlled—seek review to prevent worsening.

Q: Does ACT replace doctor’s visits?

A: No, it’s a tool to inform discussions and track trends.

Q: Can lifestyle improve my score?

A: Yes, trigger avoidance, exercise, and adherence boost control.

This comprehensive guide equips you to use the ACT effectively. Print, score, and act for optimal asthma management.