Asthma Flashcards
What are the symptoms of asthma? (name 3)
-Intermittent dyspnea
-Cough (persistent)
-Wheezing (sudden onset or persistent)
-Chest tightness
-Colds that take >10dys to resolve
-Apparent triggers (animals, tobacco smoke, perfume)
-Symptoms awaken patient from sleep
-Exertional symptoms
Seasonal (pollen, mold, viruses)
-Poor school performance & fatigue (sleep deprivation)
Risk Factors for Asthma? (name 3)
- Socioeconomic status (poverty (esp in urban settings))
- Urban dwellers
- Food allergies (associated with intubations for asthma)
- Family history of asthma
- Atopy
What are the three features of Atopy?
- Allergic rhinitis (seasonal allergies)
- Atopic dermatitis (eczema)
- Asthma
* Elevated IgE levels
How can you distinguish asthma from COPD
On PFT spirometry, asthma is usually completely reversible with bronchodilator therapy whereas COPD is not.
What are 3 Risk Factors for Fatal Asthma Attacks?
- Previous severe exacerbation (prior intubation or ICU stay)
- Hospitalization for asthma within prior year
- 3 or more ER visits for asthma in past year
- Use of more than one canister of SABA/month
- Difficulty perceiving asthma symptoms or severity of exacerbations
- History of poor adherence
- Illicit drug use or psychosocial problems
- Comorbidities such as cardiovascular or other chronic lung disease
What are Extrapulmonary physical exam findings for asthma? (3)
- Pale, swollen nasal turbinates suggestive of allergic rhinitis
- Nasal polyps (in adults)
- Atopic dermatitis (eczema)– risk factor for asthma
What should you use to monitor improvement/progression of asthma in a patient hospitalized with asthma exacerbation?
-Peak expiratory flow (Peak Flow Meter) daily
What do you expect the FEV1/FVC ratio to be in asthma?
less than 0.7
What do you expect the DLCO to be in asthma?
Normal
If a child presents with persistent asthma symptoms, in addition to adding a maintenance medication, what should you pursue?
- Allergy skin testing to look for triggers
- Controlling environmental factors (triggers)
What is the first line medication for mild persistent asthma in all populations?
Step 1: Short acting beta-agonist (SABA) prn (Albuterol inhaler)
What maintenance medication should you add to a child with Persistent asthma if SABA PRN is not enough?
Step 2: Low dose inhaled glucocorticoid
What medication should you add to inhaled glucocorticoid in a child if you need to escalate maintenance therapy?
Step 3: Long acting beta agonist (LABA) (Salmetrol) (or theophylline in kids age 5-11)
What is the Treatment for Acute Asthma Exacerbation?
name 3
-Oxygen ( keep SaO2 >90% but <96%)
-Systemic glucocorticoid (methylprednisolone vs prednisone)
-Short acting bronchodilator (stacked nebs) (Albuterol ,
Add Ipratropium for severe flares in the ER, then resort back to only albuterol once admitted to the hospital)
-Magnesium (Intravenous) – for severe flares