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21 Cards in this Set
- Front
- Back
Chronic cough: 4 way differential
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asthma
COPD / chronic bronchitis post nasal drip GERD |
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The absence of wheezing makes ? very unlikely.
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asthma
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What test and test value is diagnostic for asthma?
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lowered FEV1 / FVC
normal is > 75% see if function is improved with bronchdilator |
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Definition of asthma?
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episodic, REVERSIBLE airway constriction
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clinical difference between mild intermittent and mild persistent asthma
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mild intermittent: no more than 2 times per week, symptoms not present between episodes
mild persistent: > 2 times per week, but less than 1 time per day. Night symptoms > 2 times per month. Symptoms severe enough to interfere in daily activities. |
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Differentiate between mild persistent and moderate persistent asthma.
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mild persistent: > 2 times per week, but less than 1 time per day.
Night symptoms > 2 times per month. Lung function normal between episodes (>80% expected value) moderate persistent: > 2 times per week Night symptoms > 1 time per week. Lung function tests abnormal between episodes (60-80% of expected value). |
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What are the parameters of severe persistent asthma?
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occurs throughout day,
lung function tests < 60% expected between episodes. |
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Tx for mild intermittent asthma?
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prn albuterol
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Tx for asthma above mild intermittent?
(first line) |
inhaled corticosteroids
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Tx for status asthmaticus?
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oxygen
continuous inhaled B agonist continuous inhaled anticholinergic IV corticosteroids ICU monitoring possible intubation and mechanical ventilation |
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Name two principal SHORT ACTING B-agonists used to treat asthma and COPD.
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albuterol
pirbuterol |
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Name two principal LONG ACTING B-agonists used to treat asthma and COPD.
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salmeterol
formoterol |
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Name two principal anticholinergics used to treat asthma and COPD.
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ipratropium (short acting, stage 1)
tiotropium (long acting, stage 2) |
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initial presenting sx of COPD
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cough, dyspnea
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By the time dyspnea develops in COPD, FEV1 has been reduced by ?
How long has COPD been present by the time dyspnea appears? |
one half
several years |
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CXR of moderate COPD will likely show?
More severe COPD will show ? |
nothing -- normal xray
hyperinflation, increased PA diameter, flattening of diaphragms |
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What is the FEV1 / FVC ratio in COPD?
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< 0.70
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What are the definitions of the four stages of COPD?
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They are defined by declining FEV1.
Stage 1 (mild): FEV1 > 80% of predicted Stage 2 (moderate): FEV1 50-80% of predicted Stage 3 (severe): 30-50% of predicted Stage 4: (very severe): <30% of predicted, or <50% of predicted with chronic hypoxemia |
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tx for stage 1 COPD
tx for stage 2 COPD |
short acting bronchodilator (albuterol, ipratropium)
long acting bronchodilator (salmetrol, tiotropium, i |
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tx for stage 3 and 4 COPD
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add inhaled steroids for exacerbations, but long term steroid tx is not recommended
stage IV with hypoxemia (PaO2 < 55*, or pulseox < 88%): oxygen therapy * <60 with pulmonary htn, PCV, or heart failure with peripheral edema |
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tx for acute exacerbation of COPD
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1. short acting bronchodilators; can combine b-agonist and anticholinergic
2. systemic steroids, which shorten exacerbation course; prednisone 40 for 10-14 days is common. |