M. tuberculosis and non-tuberculous mycobacteria — Flashcards

Flashcard 1: Mycobacteria tuberculosis primarily resides and proliferates in _____ (cell type)

Answer: macrophages

Flashcard 2: Mycobacterium _____ causes cervical lymphadenitis in children

Answer: scrofulaceum

Flashcard 3: What is the gram stain of Mycoplasma pneumoniae?_____

Answer: None (no cell wall)

Flashcard 4: _____ requires selective media such as Middlebrook medium and rapid automated broth cultures.

Answer: M. tuberculosis

Flashcard 5: Mycoplasma pneumoniae

Answer:

Extra: Eaton's agaratypical "walking" pneumoniamacrolide or flouroquinolone

Flashcard 6: What are the key associations to remember for cold agglutinin?

Answer: IgM, Mycoplasma, Mononucleosis (EBV)

Flashcard 7: Mycoplasmal pneumonia

Answer: Mycoplasma pneumoniae

Extra: pneumonia with insidious onset, headache, nonproductive cough, diffuse interstitial infiltratelung X-ray: diffuse interstitial inflitratemacrolide or flouroquinolone<30 y/o, military recruits and prisoners

Flashcard 8: What factor explains Mycoplasma's inability to Gram stain?

Answer: no cell wall!

Flashcard 9: Nocardia spp.

Answer: +

Extra: branching filaments resembling fungiaerobeacid fastpneumonia in immunocompromised, cutaneous infections of trauma in immunocompetentsulfonamides

Flashcard 10: tuberculoid leprosy

Answer: Mycobacterium leprae

Extra: few hairless skin plaques6 months of dapsone and rifampin