Pulm #1 Flashcards
Acute bronchitis is MCC by _____, but can also be caused by bacteria such as _____
Viruses (Adenovirus, Parainfluenza, Coronavirus, Rhinovirus)
-Bacterial: S. Pneumo, M. Cattarhalis, H. Influenzae
Symptoms of acute bronchitis
- Cough (hallmark, and present for at least 5 days)
- Malaise, dyspnea, may have hemoptysis
- May have wheezing and rhonchi
Treatment for acute bronchitis
- Symptomatic management
- ABX not indicated in most patients
What is acute bronchitis?
Inflammation of the bronchi
Risk factors for epiglottitis
- DM
- Children 3 mos - 6 years
- Males
What are the causes of Epiglottitis?
- H. Influenzae B in unvaccinated or foreign immigrants
- Group A Strep or Strep Pneumo if vaccinated, cocaine use
Symptoms of Epiglottitis
- Dysphagia, Drooling, Distress
- Fever, inspiratory stridor, tripoding, hot potato voice
What is the definitive diagnostic for epiglottitis?
Laryngoscopy (cherry red epiglottis with swelling)
However, what other diagnostic can be done for epiglottitis and what do you see?
Lateral cervical radiographs: thumb or thumbprint sign
Treatment for epiglottitis
- Maintain the airway (most important component) in the OR
- ABX: Ceftriaxone or Cefotaxime
How to prevent Epiglottitis in close contacts
-Rifampin
Acute Respiratory Distress Syndrome (ARDS) is MC in ______, such as _____
Critically ill patients
- Gram negative sepsis (MC)
- Severe pancreatitis
- Near drowning
What are the three components of diagnosing ARDS
- Severe hypoxemia refractory to supplemental oxygen (PaO2/FiO2 radio < 200 mm Hg)
- Bilateral diffuse pulmonary infiltrates that spares costophrenic angles
- Pulmonary capillary wedge pressure < 18 mm Hg with right heart catheterization (Swanz-Ganz)
-Symptoms developing within 1 week
Treatment for ARDS
Symptoms of ARDS
- Noninvasive or mechanical ventilation + treat underlying cause
- -PEEP improve hypoxemia
-Often fatal
- Rapid onset of profound dyspnea 12-24 hours after precipitating event (car crash, etc.)
- Pink frothy sputum
What is linked with COPD in younger adults (<40 y/o) associated with panlobar emphysema?
Alpha-1 Antitrypsin Deficiency
What should you do diagnostically in a patient who is under 40 with COPD?
Blood tests
What risk factors are associated with Asbestosis?
- Destruction, repair or renovation of old buildings
- Insulation, ship building
Chest radiographs for Asbestosis shows
- Pleural plaques/calcifications or thickening of parietal pleura of lower lobes
- Interstitial fibrosis (honeycomb lungs) of the lower lobes
- “Shaggy heart sign” –indistinct heart border
What gives a definitive diagnosis of Asbestosis?
Lung biopsy: shows linear asbestos bodies (ferruginous bodies)
What does a PFT show for asbestosis?
Restrictive lung pattern: increased FEV/FVC1, decreased lung volumes
Complications of Asbestosis
- Bronchogenic carcinoma (most common)
- Malignant mesothelioma of the pleura (most specific)
What does a liver biopsy show in a patient with Alpha-1 Antritypsin Deficiency?
PAS-positive globules in hepatocytes