Initial Treatment Approach for Asthma Symptoms
For patients presenting with asthma complaints who are not currently on long-term controller medications, assess asthma severity first, then initiate a stepwise treatment approach matched to that severity level, with short-acting β2-agonists (SABA) as needed for all patients and inhaled corticosteroids as the cornerstone for anyone with persistent disease. 1, 2
Initial Assessment Framework
When a patient complains of asthma symptoms, your first task is to determine whether this is:
- A new diagnosis requiring severity classification 1
- An acute exacerbation requiring immediate intervention 1, 2
- Poor chronic control in someone already on therapy 1
Key Clinical Features to Elicit
Symptom Pattern Assessment:
- Frequency of daytime symptoms (coughing, breathlessness, wheezing) per week 1
- Nighttime awakenings due to asthma per month 1
- How often they use rescue inhalers (SABA use >2 days/week indicates inadequate control) 1, 2
- Interference with normal activities (work, school, exercise) 1
Objective Measurements:
- Peak expiratory flow (PEF) or FEV1 as percentage of predicted or personal best 1
- Frequency of exacerbations requiring oral corticosteroids in the past year 1
Red Flags for Severe/Life-Threatening Presentation:
- Too breathless to complete sentences in one breath 1, 2
- Respiratory rate >25 breaths/min or heart rate >110 beats/min 1, 2
- PEF <50% of predicted (severe) or <33% (life-threatening) 1, 2
- Silent chest, cyanosis, confusion, or exhaustion 1, 2
Treatment Algorithm Based on Presentation
For Acute Severe Symptoms (Immediate Management)
If the patient presents with severe features, initiate treatment immediately before completing full assessment: 1, 2
- High-dose inhaled β-agonists: Salbutamol 5 mg or terbutaline 10 mg via nebulizer with oxygen, or 10-20 puffs via metered-dose inhaler with spacer 1, 2
- Systemic corticosteroids: Prednisolone 30-60 mg orally or hydrocortisone 200 mg IV immediately 1, 2
- Add ipratropium 0.5 mg nebulized if life-threatening features present 1, 2
- High-flow oxygen to maintain SaO₂ >92% 2, 3
For New Diagnosis (Classify Severity, Then Initiate Therapy)
Intermittent Asthma (symptoms <2 days/week, nighttime awakenings ≤2x/month, PEF >80%): 1
Mild Persistent (symptoms >2 days/week but not daily, nighttime awakenings 3-4x/month): 1
- Low-dose inhaled corticosteroid (preferred first-line controller) 1, 2, 4
- SABA as needed for symptoms 1, 2
Moderate Persistent (daily symptoms, nighttime awakenings >1x/week, PEF 60-80%): 1
- Low-dose inhaled corticosteroid PLUS long-acting β2-agonist (LABA), or medium-dose inhaled corticosteroid alone 1, 2, 4
- Alternative: Low-dose inhaled corticosteroid plus leukotriene receptor antagonist 1, 5
Severe Persistent (continuous symptoms, frequent nighttime awakenings, PEF <60%): 1
- High-dose inhaled corticosteroid PLUS LABA 1, 2, 4
- Consider adding leukotriene receptor antagonist or theophylline 1, 5
- May require oral corticosteroids 1, 2
For Patients Already on Controller Medications (Assess Control)
Well Controlled (symptoms ≤2 days/week, nighttime awakenings ≤2x/month, no interference with activities, PEF >80%): 1
Not Well Controlled (symptoms >2 days/week, some activity limitation, PEF 60-80%): 1
- Step up one level in treatment intensity 1, 2
- Before stepping up, verify: proper inhaler technique, medication adherence, environmental trigger control, and management of comorbidities (GERD, rhinitis, obesity) 1, 2
Very Poorly Controlled (symptoms throughout the day, extremely limited activity, PEF <60%): 1
Critical Implementation Details
Inhaler Technique and Delivery:
- All patients using metered-dose inhalers should use a spacer device for enhanced drug distribution 1, 2
- Children 0-4 years require large-volume spacers or nebulizers 2
- Verify proper technique at every visit before escalating therapy 2
Patient Education Essentials:
- Distinguish "relievers" (SABA bronchodilators for acute symptoms) from "preventers" (inhaled corticosteroids for daily use) 2
- Provide written asthma action plan detailing when to increase medications, when to start oral steroids, and when to seek emergency care 1, 2
- Instruct patients to rinse mouth after inhaled corticosteroid use to prevent oral candidiasis 4
Common Pitfalls to Avoid:
- Never use LABA monotherapy without inhaled corticosteroids (increases risk of serious asthma-related events) 4
- Do not double inhaled corticosteroid doses for home management of gradual decline—this is ineffective 1
- SABA use >2 days/week (excluding pre-exercise use) indicates inadequate control requiring controller medication adjustment 1, 2
- For patients taking daily asthma medications, do not take additional SABA dose for exercise-induced symptoms within 24 hours of previous dose 5
Follow-Up and Monitoring
Planned Visit Schedule:
- Intermittent asthma: Annually 1
- Persistent asthma on controllers: Every 2-6 months minimum 1
- After acute exacerbations: Within 24-48 hours 2
At Each Visit, Reassess:
- Symptom frequency and SABA use 1
- Nighttime awakenings 1
- Activity limitations 1
- Pulmonary function (PEF or spirometry) 1
- Exacerbation frequency 1
- Inhaler technique and medication adherence 1, 2
When to Refer to Specialist
Immediate specialist consultation indicated for: 1, 2
- Diagnostic uncertainty (especially elderly smokers with wheeze) 1, 2
- Possible occupational asthma 1, 2
- Step 4 or higher treatment required (Step 3+ for children 0-4 years) 1, 2
- ≥2 oral corticosteroid bursts in past year 1, 2
- Any hospitalization for asthma 1, 2
- Difficulty achieving or maintaining control despite appropriate therapy 1, 2