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Pneumonia Cases, Lower Respiratory Infections
Exam 6 Material
38
Medical
Graduate
12/05/2010

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Term
What are the three most common bacterial causes of acute pneumonia?
Definition
Streptococcus pneumoniae, Staphylococcus Aureus, and Haemophilus Influenzae
Term
What are the two rickettsial agents that cause acute pneumonia?
Definition
Coxiella Burnetti and Rickettsia Rickettsiae
Term
What are the four common agents of chronic pneumonia?
Definition
Fungi, Nocardia, Mycobacteria, and Anaerobic Bacteria
Term
Besides chronic pneumonia, what else is nocardia associated with?
Definition
Formation of brain abscesses
Term
The presence of a high percentage of PMN's indicates a bacterial pneumonia or a viral pneumonia?
Definition
bacterial pneumonia (viral pneumonia associated with mononuclear cell infiltrates)
Term
Bronchial sounds in which the inspiratory phase is equal in length to the expiratory phase indicates what?
Definition
consolidation
Term
Which antibiotic is typically given in therapy for acute pneumonia to cover the atypical organisms?
Definition
azithromycin
Term
For atypical acute pneumonia, which class of antibiotics is used for treatment?
Definition
macrolides
Term
Which organisms is a very common cause of pneumonia in children and young adults and is often accompanied by signs like stuffy nose and headache?
Definition
mycoplasma pneumoniae
Term
Health-Care associated pneumonia is most oftenly caused by what class of bacteria?
Definition
Gram-negative bacilli
Term
Pneumonia caused by transmission via rabbits, foxes, and squirrels is suggestive of what disease?
Definition
tularemia
Term
What is the bacterial agent that causes the plague?
Definition
yersinia pestis
Term
Anthrax is transmitted by bacillus anthracis, an organism found commonly in what animal agents?
Definition
cattle and animal hides
Term
Flora that is mixed, containing Gram (+) and (-) organisms is likely what type of flora?
Definition
oral flora
Term
What are the three predominant anaerobic bacteria in the oropharynx?
Definition
peptococcus, peptostreptococcus, fusobacteria
Term
Which antibiotic is an excellent choice for oral anaerobes?
Definition
clindamycin
Term
With pleural effusion, are breath sounds enhanced or diminished?
Definition
diminished
Term
High dose steroids increase risk of which types of pneumonia?
Definition
Legionella, Mycobacteria/nocardia
Term
Which bacteria are commonly associated with community-acquired pneumonia in smokers and patients with COPD?
Definition
Legionella, Haemophilus Influenza, and Strep Pneumo
Term
What is the first-line treatment for Legionella pneumonia and other species associated with immunosuppression, smoking, and COPD?
Definition
Macrolides (IV azithromycin commonly used)
Term
Mycoplasma pneumoniae and respiratory viruses are associated with which type of pneumonia, typically?
Definition
bronchopneumonia
Term
interstitial pneumonia in immunosuppressed patients typically caries what etiology?
Definition
viral
Term
What are three less frequent diseases that occur with pneumococcal infections?
Definition
endocarditis, septic arthritis, and peritonitis
Term
What two virulence factors by streptococcus pneumoniae stimulate inflammation?
Definition
peptidoglycan and teichoic acid
Term
What two virulence factors secreted by S. pneumoniae modify extracellular matrix components?
Definition
neuraminidase and hyaluronidase
Term
Choline-binding proteins, protein A, and teichoic acid make up what type of virulence factors?
Definition
adhesive cell-surface components
Term
What is the mechanism of pneumolysin?
Definition
inhibits beating of cell cilia and activity of PMN's
Term
What method is used to stain the polysaccharide capsule in strep. pneumo?
Definition
The method of Schneierson
Term
When do anti-capsular antibodies typically develop?
Definition
5-8 days after the infection
Term
For protein-conjugate vaccines to fight strep pneumo,what two carrier proteins are commonly used? What is the advantage of such a conjugated vaccine?
Definition
tetanus and diphtheria toxoids/ confers T-cell memory
Term
In contrast to pneumonia with an atypical etiology, what is the appearance of patients who have a classical community-acquired case of pneumonia?
Definition
grayish and anxious
Term
What are the most frequent symptoms associated with classical CAP?
Definition
cough and fatigue
Term
In the US, what type of phenotype confers S. pneumo with low-level resistance to antibiotic treatment but can be overcome with higher levels of antibiotics?
Definition
M-phenotype
Term
In Europe, what genetic change is associated with high level resistance to all macrolides?
Definition
ermB-gene polymorphism
Term
What is the treatment for legionella pneumonia?
Definition
cell-penetrating erythromycin and quinolones
Term
The chest radiograph of someone with legionella pneumonia would reveal rapid progression to multi-lobe stage with what feature?
Definition
pleural effusion
Term
Nosocomial pneumonia represents what % of nosocomial infections?
Definition
15-20%
Term
What term refers to the less common process of nosocomial infection with esophageal or gastric material; bacteria condensating in ventilator tubing and drains?
Definition
macroaspiration
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