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Unit 3 Chapter 32
Upper and Lower Respiratory Tract Infections
Question | Answer |
---|---|
normal flora of the nasopharyngeal/oropharngeal | Streptococcus mitis, Streptococcus salivarius, other viridans sptreptococci, Streptococcus pneumoniae, non group A β-hemolytic streptococci, Streptococcus pyogenes, nonhemolytic streptococci, Veillonella spp., Bacteroides spp., Fusobacterium app. |
primary pathogens of the respiratory tract | Streptococcus pneumoniae, group A β-hemolytic streptococci, Neisseria meningitis, Neisseria gonorrhoeae, Bordetella pertussis, Mycobacterium tuberculosis, Mycobacterium kansasii, Legionella pneumophila, toxin-producing Corynebacterium diptheriae, Mycoplas |
pharyngitis and causative agents | Children: Streptococcus pyogenes; Adults: viruses |
sinusitis and causative agents | most common: rhinovirus, Parainfluenza virus; less common: Streptococcus pneumoniae, Haemophilis influenzae |
epiglottitis and causative agents | most common: Stre[tococci, Staphylococci, H. influenzae type B; less common: H parainfluenzae |
pertussis and causative agents | most common: Bordetella pertussis, Bordetella parapertussis; less common: Bordetella bronchiseptica, Bordetella holmesii |
bronchitis/bronchiolitis and causative agents | most common: respiratory viruses, respiratory syncytial virus (RSV), influenza; less common:Mycoplasma pneumoniae, Chlamydophila pneumoniae, Bordetella pertussis |
influenza and causative agents | influenza A or B virus based off surface antigens |
acute pneumonia and causative agents | RSV, influenza types A and B, S. pneumoniae, S. aureus |
nosocomal pneumonia and causative agents | gran-negative bacilli, Stphylococcus aureus, Streptococcus pneumoniae, Haemophilus influenzae, Legionella pneumophila |
aspiration pneumonia and causative agents | mixed aerobes and sometimes anaerobes |
empyema and causative agents | community acquired: S. pneumoniae, S. aureus, S. pyogenes, S. anginosus, anaerobes, Mycobacterium tuberculosis; health care-associated: gram-negative bacilli, anaerobes |
tuberculosis and causative agents | Mycobacteria |
other chronic pneumonias and causative agents | Mycobasterium tuberculosis, nontuberculous mycobacteria, Blastomyces dermatitidis, Histoplasma capsulatum, Coccidioides immitis, Cryptococcus neoformans, Aspergillus spp., Zygomycetes, Pneumocytis jirovecii |
common respiratory pathogens in HIV infections | Mycobacterium tuberculosis, Mycobacterium avium complex, Streptococcus pneumoniae, Haemophilus influenae, Toxoplasma gondii, Pneumocytis immitis, Histoplasma capsulatum, Aspergillus spp., Cryptococcus neoformans, influenza, Cytomegalovirus |
Bioterrorism/repiratory infections | anthrax, pneumonic plague, and tularemia |
Common pathogens of lower respiratory infections by age | neonates: Chlamydia trachonatis; infants: RSV, influenza virus; 5-18mo: S. pneumoniae, H, influenzae; 3mo-19yr: viruses, S. aureus, M. pneumoniae; 18-45: M. pneumoniae; older adults: S. pneumoniae, Legionalla spp.; |