Pneumonia, Adult
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Basics
Description
- Epidemiology:
- Seventh leading cause of death and leading cause from infectious disease in the U.S.
- Highest mortality in elderly and patients with the following coexisting conditions:
- Chronic heart, lung, liver, and kidney disease
- Diabetes mellitus
- Alcoholism
- Malignancy
- Asplenia
- Immunosuppression
- Use of antimicrobials within last 3 mo
- Classifications:
- Source based:
- Community acquired (CAP)
- Hospital acquired (HAP)
- Ventilator associated (VAP)
- Symptom based:
- Typical
- Atypical
- Source based:
- Complications:
- Bacteremia
- Sepsis
- Abscess
- Empyema
- Respiratory failure
Etiology
- CAP (typicals):
- Streptococcus pneumoniae
- Haemophilus influenzae
- Klebsiella pneumoniae
- Moraxella catarrhalis
- Streptococcus pyogenes
- Staphylococcus aureus
- CAP (atypicals):
- Mycoplasma pneumoniae
- Chlamydophila pneumoniae
- Legionella pneumophila
- Viral
- HCAP/HAP/VAP:
- Gram negatives (Pseudomonas, Stenotrophomonas)
- Methicillin-resistant S. aureus (MRSA)
- Immunosuppressed:
- Mycobacterium tuberculosis
- Pneumocystis jirovecii
- Aspiration:
- Chemical pneumonitis ± oral and gastric anaerobes
-- To view the remaining sections of this topic, please log in or purchase a subscription --
Basics
Description
- Epidemiology:
- Seventh leading cause of death and leading cause from infectious disease in the U.S.
- Highest mortality in elderly and patients with the following coexisting conditions:
- Chronic heart, lung, liver, and kidney disease
- Diabetes mellitus
- Alcoholism
- Malignancy
- Asplenia
- Immunosuppression
- Use of antimicrobials within last 3 mo
- Classifications:
- Source based:
- Community acquired (CAP)
- Hospital acquired (HAP)
- Ventilator associated (VAP)
- Symptom based:
- Typical
- Atypical
- Source based:
- Complications:
- Bacteremia
- Sepsis
- Abscess
- Empyema
- Respiratory failure
Etiology
- CAP (typicals):
- Streptococcus pneumoniae
- Haemophilus influenzae
- Klebsiella pneumoniae
- Moraxella catarrhalis
- Streptococcus pyogenes
- Staphylococcus aureus
- CAP (atypicals):
- Mycoplasma pneumoniae
- Chlamydophila pneumoniae
- Legionella pneumophila
- Viral
- HCAP/HAP/VAP:
- Gram negatives (Pseudomonas, Stenotrophomonas)
- Methicillin-resistant S. aureus (MRSA)
- Immunosuppressed:
- Mycobacterium tuberculosis
- Pneumocystis jirovecii
- Aspiration:
- Chemical pneumonitis ± oral and gastric anaerobes
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