Week 2 Flashcards
Characterized by infection of the tracheobronchial tree that results in hyperemic and edematous mucous membranes, yielding an increase in bronchial secretions .
Acute bronchitis
Most common virus causing acute bronchitis:
Rhinovirus
Hallmark of acute bronchitis:
Dry/nonproductive cough
General treatment for acute bronchitis:
Symptomatic and supportive care, antitussives, bronchodilators
Productive cough and sputum production for 3 months per year for at least 2 consecutive years
Chronic bronchitis
3 cardinal symptoms of COPD exacerbations:
- Increase in dyspnea
- Increase in sputum production
- Increase or presence of sputum purulence
An infection in the lungs that leads to consolidation of the usually air-filled alveoli.
CAP
Most common pathogen of CAP:
S. Pneumoniae
Diagnostic criteria for CAP:
Patients present with cough, fever, dyspnea, malaise, pleuritic chest pain, CXR
Antibiotic treatment for patients with CAP without recent antibiotic use or existing Comorbidity:
Macrolides- azithromycin or clarithro
Or doxy
Antibiotics in treatment of CAP in patients of comorbidity:
High-dose amoxicillin, augmentin, or 2nd/3rd generation cephalosporin plus a macrolide, or a fluoroquinolone alone.
With CAP what antibiotic can be used in patients allergic to azithromycin?
Doxycycline
What antibiotic should not be used in CAP treatment:
Cipro
In children, antibiotics are typically not required; however, if needed what do you use?
Amoxicillin
Characterized by airway narrowing and Airway hyper-responsiveness.
Asthma
Airflow obstruction is present when the FEV1/FVC ratio is less than:
0.70
All patients with asthma, regardless of severity, require:
Short-acting beta2-adrenergic agonist (SABA) bronchodilator for quick relief of acute symptoms
When can treatment be stepped down with asthma?
When symptoms have been well controlled for 3 months
How to step down asthma treatment:
- Oral corticosteroids are reduced and d/c’d first
- Dose of inhaled corticosteroids May then be reduced by 50%
- Long-term control regimen may be stopped if the person with asthma has been free of symptoms for 6-12 months and has no risk of exacerbations
MOA of beta2-adrenergic agonist:
Stimulate the beta2-adrenergic receptors, increasing production of the cAMP. Increased cAMP relaxes the airway smooth muscle and increases bronchial ciliary activity.
All beta2-adrenergic agonists have:
Slight CV stimulatory effects including increased HR, cardiac contractility, and increased cardiac conductivity
Examples of SABAS:
Albuterol and levalbuterol
Example of long-term beta2-adrenergic agonist:
Salmeterol- used in chronic maintenance
Formoterol- quicker onset of action
Both have duration of action of 12 hours.
Both are beta2 selective.
Contraindications with beta2-adrenergic agonist:
Use in caution in patients with CV disease, arrhythmia, DM, glaucoma, hyperthyroidism, or seizure disorder