Pneumonia π Flashcards
Definition of Pneumonia
Inflammation of lung parenchyma due to infection.
Main Causes of Pneumonia
Viruses, bacteria, fungi, mycobacteria, parasites.
- Bacterial Pneumonia Pathogens in Newborns
Group B Streptococcus, Listeria, E. coli.
Main Viral Pathogen in Newborns
Respiratory Syncytial Virus (RSV).
Main Bacterial Causes in Infants (1-3 months)
S. pneumoniae, S. aureus, H. influenzae.
Common Cause in Children (3mo-4yrs)
Viruses, mainly RSV.
Most Common Bacterial Cause in 3mo-4yrs
.
S. pneumoniae
Main Pathogens in School-Aged Children
Mycoplasma pneumoniae, Chlamydophila pneumoniae.
Clinical Symptoms of Pneumonia
.
Cough, fever, respiratory distress
- Sensitive Sign in Pneumonia
.
Tachypnea
Specific Sign in Chest Radiograph
Retractions and grunting linked to
alveolar infiltrates.
- Common Physical Findings
Crackles, bronchial breathing, hypoxemia.
- WHO Tachypnea Criteria (<2 months)
β₯60 breaths/min.
WHO Tachypnea Criteria (2-12 months)
β₯50 breaths/min.
WHO Tachypnea Criteria (1-5 years)
.
β₯40 breaths/min
Laboratory Test for Differentiation
WBC count (>15,000 indicates bacterial).
Best Diagnostic for Viral Infections
Detection of viral genome/antigen in respiratory secretions.
Confirming Bacterial Pneumonia
Isolate organism from blood or pleural fluid.
Empiric Treatment in Hospitalized Children depends on
Depends on penicillin resistance and vaccination status.
- Antibiotics for School-Aged Children with Mycoplasma Suspected
Macrolide antibiotic.
Antibiotics for Neonates with CAP
.
IV ampicillin and gentamicin
Duration of Antibiotic Treatment
Until afebrile for 72 hours, typically 7-10 days.
- Complications of Pneumonia
Pleural effusion, empyema, necrotizing pneumonia.