2. - inflammation of the lungs caused by infection
- many different causes: bacteria, viruses, fungi, idiopathic
- damages ALVEOLI > exudate (fluid) > consolidates > lack of oxygen
5. Prediction rule for the frequency of inflammation:
Temperature > 100 degrees F (37.8 degrees C)
Pulse > 100 beats/min
Crepitations
Decreased breath sounds
Absence of asthma
Probability of inflammation based on the number of findings:
5 findings - 84% to 91% probability
4 findings - 58% to 85%
3 findings - 35% to 51%
2 findings - 14% to 24%
1 finding - 5% to 9%
0 findings - 2% to 3%
COMBINED FINDINGS
7. Community-acquired pneumonia (CAP)
- in a person who has not recently been hospitalized!
- most common type of pneumonia
- home care, oral antibiotics
Most common cause of CAP H. influenzae
Streptococcus pneumoniae most common cause of CAP worldwide
viruses
atypical bacteria
Fourth most common cause of death in UK and sixth in US
Hospital-acquired pneumonia (nosocomial)
- acquired during or after hospitalization for another illness or
procedure, 72h latency time after admission
- 5% patients develop HAP
- more deadly
10. - oral antibiotics, rest, lots of fluid!
- home care no hospitalization needed
- people with other medical problems and elderly hospitalization if
pneumonia persists
Bacterial pneumonia treated with antibiotics:
- amoxicillin
- fluoroquinolones
- cephalosporins
- aminoglycosides
Viral pneumonia influenza A rimantadine , amantadine
11. Bacterial pn. resolves within 2 to 4 weeks
- 1/20 people with pneumococcal pneumonia die
- half of the people who develop MRSA on ventilator die
Viral pn. lasts longer than bacterial
Mycoplasmal pn. 4 to 6 weeks to resolve
- low mortality
12. • Vaccination H. influenzae and S. pneumoniae in the 1st year
- repeat after 5-10 years
• Abtibiotics Group B Streptococcus and Chlamydia trachomatis
positive pregnant women
• Treating underlying illnesses (e.g. AIDS) can decrease the risk of
pneumonia
• Smoking cigarette smoke interferes with many of the body's natural
defenses against pneumonia