II: Respiratory Infections Flashcards
What is the gold standard for diagnosis of pneumonia?
CXR
Antigenic ______: point mutations in genes that lead to amino acid changes that modify antigenic sites
drift
Antigenic ______: radical change in HA or NA that lead to emergence of new major antigenic variants
shift
How do mycoplasma reproduce?
Binary fission
How is Legionella transmitted?
Contaminated water
Legionella is catalase ____ and oxidase _____.
Positive, Positive
Mycoplasma shows _____ morphology for most diseases but instead shows ____ in pneumonia
Fried egg appearance; small granular colonies
Name 4 viral pathogens that cause both URIs and LRIs
RSV, Adenovirus, Influenza, Parainfluenza
Name 4 viral pathogens that exclusively cause URIs.
Rhinovirus, Coronavirus, HSV, EBV
Name an orthomyxovirus.
Influenza virus
Name causes of Pneumonia seen in atypical pneumonia (3)
Mycoplasma, Legionella, Chlamydia
Name causes of Pneumonia seen in children (4)
Viruses, Mycoplasma, Chlamydia, S. pneumoniae
Name causes of Pneumonia seen in elderly patients (5)
S. pneumoniae, Influenza virus, Anaerobes, H. influenzae, GNRs
Name causes of Pneumonia seen in hospital-acquired cases (3)
S. aureus, Pseudomonas, GNRs
Name causes of Pneumonia seen in neonates (2)
Group B Strep, E. coli
Name causes of Pneumonia seen in older adults (5)
S. pneumoniae, H. influenzae, Anaerobes, Viruses, Mycoplasma
Name causes of Pneumonia seen in young adults (3)
Mycoplasma, C. pneumoniae, S. pneumoniae
Name the 5 criteria of CURB65.
Confusion, Uremia, Elevated RR, BP less than 90 (systolic) or 60 (diastolic), Age over 65
Name the pathogens often responsible for croup.
PIV-1, PIV-2, RSV
Name the preferred definitive diagnostic test for Mycoplasma.
PCR