Micro Exam 3 Flashcards
What type of Mycobacterium is NOt human-human?
Myco Avium
describe what these types of antifungals do: amphotericin, azoles, echinocandins, flyctosines
amphotericin- disrupts cell membrane integrity by poking holes through the ergosterol
Azoles- disrupt the synthesis of ergosterol
Echinocandins- disrupt the b 1,6 glucan synthesis of the cell wall
Flucytosine- disrupts the DNA replication
which fungal infection is most common cause of fungal sinusitis
aspergillosis
systemic candidiasis is treated with
caspofungin
cryptococcus is treated with
amphotericin and flucytosine or just flucanozole for aids patients
aspergillosis is treated with
voriconazole with or without echinocandin caspfungin
immunosuppressed heart translant patient’ chest x ray shows thin nodules in lungs and recently traveled to central america. he also has pneumonia. what medication should you put him on?
hes infected with coccidiomycosis from valley fever. worried abotu dissemination into skin bone and brain (meninges). give him amphotericin and flucytosine or just Fluconazole
who is at greatest risk for coccidiomycosis?
pregnant 3rd trimester people. immunosuppressed by drugs from organ transplant, aids patients, and patients taking anti TNF drugs (like rheumatoid arthritis patients).
how are histoplasma and TB similar
both are intracellular pathogens of macrophages. but histoplasma lysis the macrophage
what do we do for acute HepB
nothing
what do we do for acute Hep C
peg ifn
which virus is a pox virus
molluscum contagiosum- replicates in the cytoplasm not the nucleus.
which virus causes hydropse fatalis
parvovirus due to massive edema and congestive heart failure
which virus kills red blood cell precursors leading to aplastic anemia
parvovirus
kids with measles must be given what vitamin to prevent high mortality chance?
vit A
