board review Microbiology viruses Flashcards
Q on boards
HSV1 causing herpetic keratitis
(fluorecein staining reveal dendritic ulcer (dendrite branches)
is the most common cause of CORNEAL blindess in US
true or false
true
Q on boards
what is the most common cause of death from encephalitis?
.HSV 1
pt presents with temporal lobe seizures symptoms
on the exam the pt smells burning rubber
diagnosis
HSV1 encephalitis
most common cause of blindness in US
diabetes
Q on boards
Tzanch test
will show what for HSV 1 -2
multinucleated epithelial giant cells w/ inclusion (cowdry type A )
(**eosinophilic nuclear inclusions**)
Q on boards
pt with Herpes zoster with trigeminal involvement (on the tip of the nose inidcating nasociliary branch infection) (hutchinsons sign)
what should you do?
consult ophthalmology
on the boards
- treatment of post herpetic neuralgia
2. capsaicin cream can be used to treat post herpetic neuralgia also
what is the moa?
- trick question they will put steriods as an answer choice.
1. gabapentin
or
TCA
2. depletes Substance P from the sensory nerve ending.
Q on board
1. HIV pt with Retinitis
(also can have Esophagitis, and pneumonia)
what is diagnosis and tx?
CMV
Ganciclovir
question on boards
giant cells w/ intranuclear inclusion bodies (owls eye)
(cells w/ basophilic inclusion bodies)
CMV
question on boards
you collect EBV and want to send the specimen for viral exam outside to lab.
how must you ship it to keep it viable?
frozen at -70 and shipped on dry ice
Q on boards
- EBV virus infects B cells by binding to what CD receptor?
- how can you tell if pt has an acute infection or previous infection
- CD21
2. acute: (heterophile) anti-EBV igM
previous IgG
on boards
pt is diagnosised with EPV
what is responsible for the enlarged lymphnodes and Splenomegaly
T cell proliferation
