Pathogens
Mycobacterium tuberculosis

Mycobacterium tuberculosis

Precautions

Airborne Precautions (N95)

Susceptibilities

General Information

Acid fast bacillus.

Latent disease believed to affect >20% of world population.

Prevalence higher in developing nations and mimics HIV/AIDS distribution.

Pulmonary:

  • Cavitating pneumonia

  • Upper lobe pnuemonia

  • Occasionally miliary

Extrapulmonary:

  • Lymph node disease

  • CNS infection

  • Osteomyelitis (Potts)

  • Peritoneal

  • Others

Airborne precautions for pulmonary disease and for extrapulmonary, draining lesions.

Infectious Diseases consultation recommended.

Pyridoxine (Vitamin B6) is used to prevent peripheral neuropathy associated with isoniazid therapy.

Caseating granulomas on pathology.

MDR includes rifampin and isoniazid resistance.