Self Assessment Thoughts

Question 1

Why can’t you treat mycoplasma pneumonia infection with penicillins or cephalosporins?

Answer 1

these abx interfere with cell wall synthesis - mycoplasma pneumo has no cell wall

Question 2

What type of imaging should be used if you suspect a PE?

Answer 2

VQ scan to look for ventilation/perfusion mismatch

Question 3

List all the factors that distinguish strep pneumo from other bacteria

Answer 3

gram positive
lancet shaped, ovoid cocci in pairs
alpha hemolytic
optichin sensitive
bile soluble
catalase negative

Question 4

Where will you see Cocci in the US?

Answer 4

desert southwest

Question 5

What is the virulence mechanism of Legionella?

Answer 5

lives within amoeba in the environment, and inside of macrophages in vivo

Question 6

If you see enlarged hilar lymph nodes and non-caseating granulomas, what should you think of?

Answer 6

SARCOID

Question 7

Endosporulating spherules in the tissues

Answer 7

Cocci

Question 8

Broad based yeast in tissue, mycelium at room temp

Answer 8

Blastomyces

Question 9

Macroconidia at room temp, small budding yeast in tissue

And bats.

Answer 9

Histoplasmosis