Ortho ID Flashcards
1
Q
what is the most common bacteria to cause Brodie’s abscess
A
staph aureus
2
Q
penumbra sign on MRI
A
brodie’s abscess
double line granulation tissue lining abscess cavity
3
Q
Gibbus deformity
A
collapse of the anterior disc space with intact posterior vertebral body. seen in TB.
4
Q
5 common viral arthritides
A
parvovirus B19
rubella
HBV
HCV
alphaviruses (chickv)
5
Q
polyarticular arthritis that resolves then onset of jaundice
A
HBV infection
6
Q
negatively birefringent crystals
A
MSU/gout
7
Q
positive birefringent crystals
A
pseudo gout/cPPD
8
Q
delayed/chronic PJI synovial fluid counts
A
WBC >3000 with >70% PMNs
9
Q
early PJI or late hematogenous synovial fluid counts
A
WBC >10k and PMNx >90%
10
Q
management of immunosuppressive medication in PJI
A
stop biologics, can keep low dose prednisone or DMARDs
11
Q
A
