Chapter 9: High Yield Respiratory Flashcards
Most common cause of Rhinitis
Adenovirus
Biopsy - pleomorphic keratin-positive epithelial cells in a background of lymphocytes. Associated with EBV.
Nasopharyngeal carcinoma
Hoarse, “barking” cough and inspiratory stridor. Inflammation of the upper airway. Most common cause = parainfluenza virus
Laryngotracheobronchitis (Croup)
Consolidation of an entire lobe of the lung. Usually bacterial (S. pneumoniae 95%; Klebsiella pneumoniae) Red hepatization –> Gray hepatization
Lobar pneumonia
Scattered patchy consolidation centered around bronchioles. Multifocal and bilateral.
Bronchopneumonia
Diffuse interstitial infiltrates. Mild upper respiratory symptoms.
Interstitial (atypical) pneumonia
Most common cause of Community-acquired poneumonia
S pneumoniae. - lobar pneumonia
Pneumonia in cystic fibrosis patients
P. aeruginosa (Bronchopneumo)
Most common cause of atypical pneumonia. Military recruits
Mycoplasma pneumoniae
Most common cause of atypical penumia in infants
RSV
Farmers and vets - cattle.
Coxiella burnetii
Pneumonia in malnourished, alcoholics, diabetics. currant jelly sputum
Klebsiella pneumonia (lobar)
Gohn complex
Primary TB ( mycobacterium tuberculosis)
Caseating granulomas; AFB bacilli. Apex of lung
Secondary TB
Caseating granulomas; AFB bacilli. Apex of lung
Secondary TB
Decreased FVC; Greatly decreased FEV1; Increased TLC
COPD
Most common cause of centriacinar emphysema
smoking
You see a barrel chested ‘pink puffer’ in ___
Emphysema
Productive cough with spiral-shaped mucus plugs (curschmann spirals) and eosinophil-derived crystals (Charcot-Leyden cyrstals)
Asthma