Mycobacteria overview — Flashcards

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

Answer: macrophages

Flashcard 2: Exposure to _____ will always* result in a positive PPD test

Answer: Mycobacterium tuberculosis (bug name)

Flashcard 3: _____ is the most common cause of atypical pneumonia in young adults

Answer: Mycoplasma pneumoniae

Flashcard 4: What is the gram stain of Mycoplasma pneumoniae?_____

Answer: None (no cell wall)

Flashcard 5: What gram stain is Mycoplasma pneumoniae characterized by?_____

Answer: No stain (lacks cell wall)

Flashcard 6: Mycoplasma pneumoniae

Answer:

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

Flashcard 7: What are the key associations to remember for cold agglutinin?

Answer: IgM, Mycoplasma, Mononucleosis (EBV)

Flashcard 8: 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 9: What factor explains Mycoplasma's inability to Gram stain?

Answer: no cell wall!

Flashcard 10: Nocardia spp.

Answer: +

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