Passed)
Epidemiology of Community Aquired Pneumonia (CAP) - Answers • Pneumonia is the most common
cause of
death for infectious disease
• 8th leading cause of overall mortality in US
• Most cases occur in immunocompetent
community dwelling individuals
• 20% of children develop pneumonia by age 5
Epidemiology
• Epidemiology-four million adults per year contract community-acquired pneumonia
- Incidence is 12 per 1000
- Increases to 30 per 1000 in those > age 75
• Considered to be one of the most "overtreated"
diagnoses
Risks for Community Aquired Pneumonia (CAP) - Answers • Risk factors include smokers, alcoholics,
asthma,
immune suppression and age > 70
- Infants and the elderly are the most severely
affected
• Most common effecting organisms of CAP are: - Answers - Streptococcus pneumoniae- (typical)
• Gram positive
- Haemophilus influenzae
,• Gram negative
- Mycoplasma pneumoniae (walking pneumonia)
• Atypical-(does not show up on a gram stain
because it lacks a cell wall )
- Chlamydophila pneumoniae
• Atypical
- Legionella species
• Atypical
• From inhaling contaminated water
- Atypical organisms account for 15%-20% of CAP
CAP due to Mycoplasma pneumoniae is more common
in the ____________________ and is highly contagious - Answers summer
M. pneumonia is rare in children <5 years , T/F? - Answers True
Source: CAP ppt
Macrolide resistance is common with M. pneumonia, T/F? - Answers True
Source: CAP ppt
Clinical Features of CAP - Answers • Cough, fever, chills, shortness of breath,
pleuritic chest pain, guarding, and sputum
(60% report putrid sputum) production
, • S. pneumoniae can cause rust-colored
sputum
• Signs include increased respiratory rate,
hypoxemia, dullness to percussion,
bronchial breathing, egophony, crackles,
wheezing, pleural friction rub, increased
tactile fremitus
Source: CAP ppt
Differentials for CAP: - Answers • Asthma
• Bronchitis
• Sinusitis
• Pulmonary edema
• TB
• Lung cancer
• Pneumonitis
Source: CAP ppt
Tactile Fremitus - Answers • use hands or ulnar surface, this helps you to feel for vibrations of the chest
as the patient repeats "99".
• Compare and contrast the sensation of the
fremitus when the numbers are spoken.