Infectious Disease Flashcards
Coccidioides presentation
CAP with hilar infiltration and skin nodules
Normal individuals do not require treatment
Patients with risk factors require ketoconazole
Mechanism of action of tetanus toxin
Tetanospasmin - retrograde transport through motor nerve into the CNS which then blocks release of glycine and GABA
Reason for hearing defects in AIDS patients
HIV lymphadenopathy causing obstruction of inner ear outflow -> serous otitis media
MAC presentation and prophylaxis
CD4 < 50 prophylaxis with azithromycin
Splenomegaly with elevated alkaline phosphatase
Keratitis vs conjunctivitis
conjunctivitis usually spares the cornea
acute HBV diagnosis
surface antigen and core IgM
invasive aspergillosis
immunocompromized patients
Halo sign (nodule with surrounding ground-glass)
1-2 weeks of voriconazole + caspofungin then vori alone
erythema nodosum causes
strep TB endemic fungal sarcoid IBD behcets
intertrigo
candida infection of skin folds
red, scaly, and satellite infections
Hepatitis C interpretation
Antibody Positive is NOT immune
Check RNA PCR
treatment for neurocysticercosis
albendazole
Acute retinal necrosis syndrome
Usually HIV+ people
HSV causing bilateral retinal necrosis and degeneration
Pain and vision loss
Keratitis
CMV retinitis
Usually not painful
Fluffy granular retinal lesions and vision loss
Some hemorrhage
recurrent encapsulated infection
complement deficiency
some cause of asplenia
Parvo infection
Slapped cheeks in children
Morbiliform in adults
(measles-like; 1-2mm macular rash thats occasionally confluent)
Symmetric arthritis thats self-resolving
BE AWARE COULD CAUSE ELEVATIONS IN RF AND ANA
Differentiate from RF and SLE with different rash and time course
