Mycoplasma Pneumonia

Question 1

Xray Findings of Mycoplasma Pneumonia

Answer 1

Ill-defined opacity in lower lobes bilaterally with hyperinflation

Question 2

Organisms in Mycoplasma or Chlamydophila Pneumonia

Answer 2

Mycoplasma pneumoniae, Chlamydophila pneumoniae, Chlamydophila psittaci

Question 3

Antibiotic Options for Mycoplasma Pneumonia

Answer 3

1. Doxycyline 100mg PO BD x 7 days
2. Azithromycin 500mg PO OD x 3 days
3. Clarithromycin 500mg PO BD x 7 days
   IV - Azithromycin 500mg IV OD x 3 days

Question 4

Legionella specific Indicators for atypical pneumonia

Answer 4

Work with potting mix for Legionalle longbeachae
Work with cooling systems in large buildings
Possible association with pleural effusion
Hyponatraemia
Marked leukocytosis
Confusion

Question 5

Additional investigations for suspected legionella pneumonia

Answer 5

Urine antigen for LP1
Serum legionella antibodies (Within 3-4 days of onset)
Sputum culture and PCR for specific legionella organisms