Miscellaneous Flashcards
1
Q
MCTD - overlapping features of which conditions?
A
SLE, polymyositis and systemic sclerosis.
Anti-U1 RNP +ve (100%)
2
Q
Major cause of mortality in MCTD?
A
PAH
3
Q
MCTD: pharmacological tx? (4)
A
Steroids
NSAIDs
Hydroxychloroquine
Immunosuppression (Cyclophosphamide for PAH)
4
Q
Abs to test in Systemic sclerosis? (6)
A
ANA (90%)
Anti-centromere (limited)
Anti-Scl70 (diffuse)
Anti-RNP (dcSSc, PAH, myositis)
Anti-PM-Scl (myositis)
Anti-Th/To (lsSSc, PAH)
5
Q
Abs associated with polymyositis and dermatomyositis? (3)
A
Anti-Jo-1
Anti-Mi2
Anti-SRP (aggressive disease)
6
Q
Ab associated with ITP?
A
Anti-Gp IIb/IIIa (sensitivity 80%, specificity 90%)