low complement in renal disease suggests immune complex mediated pathology
when assessing complement levels, it helps to have two time points to establish a trend
Henoch Schonlein Purpura - 1/2 of all cases preceded by URI, especially strep, or vaccination or insect bites. Renal biopsy stain IgA, C3, Fibrin
Palpable Purpura (100%)
Arthritis (43-75%)
Abdominal Pain (20-30%)
Renal (21-54%)
women w/MI present very atypically
stigmata of chronic infection- temporal wasting, thenar wasting, interossei wasting, adenopathy
pulmonary manifestations of RA -
pulmonary effusion, greatly decreased glucose
pulmonary nodules
airway manifestations
interstitial lung disease associated with RA (NSIP)
decreased glucose? infection or RA
studding of diaphragm on cxr? interstitial disease
honeycombing is an end stage process of interstitial lung disease
never order ACE for sarcoid, its not an informative test
differential for miliary pattern on cxr
tb
sarcoid
pcp
varicella
metastasis
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