Flashcards in Infectious Disease Deck (43):
4 s/sxs of streptococcal pharyngitis
Fever, pharyngeal erythema, tonsillar exudate, lack of cough
Non-suppurative complication of streptococcal infxn that is not altered by tx of 1˚ infxn
Asplenic pts are particularly susceptible to these organisms
Encapsulated organisms: pneumococcus, meningococcus, Haemophilus influenzae, Klebsiella
# of bacteria on a clean-catch specimen to dx a UTI
Which healthy population is susceptible to UTIs?
Pregnant F. Tx this group aggressively bc of potential complications.
Pt rom California or Arizona presents with fever, malaise, cough, and night sweats. Dx? Tx?
-Tx: amphotericin B
"Blueberry muffin" rash is characteristic of what congenital infxn?
Meningitis in neonates: Causes? Tx?
-Causes: GBS, E. coli, Listeria
-Tx: gent and amp
Meningitis in infants: Causes? Tx?
-Causes: Pneumococcus, meningococcus, H. flu
-Tx: cefotaxime and vanco
What should always be done prior to LP?
Check for increased ICP; look for papilledema
CSF findings: (L) glucose, PMN predominance
CSF findings: nl glucose, lymphocytic predominance
Aseptic (viral) meningitis
CSF findings: numerous RBCs in serial CSF samples
Subarachnoid hemorrhage (SAH)
CSF finding: increased gamma globulins
Initially presents with a pruritic papule with regional LAD; evolves into a black eschar after 7-10 days. Tx?
Cutaneous anthrax. Tx with pen G or cipro.
Findings in 3˚ syphilis
Tabes dorsalis, general paresis, gummas, Argyll Robertson pupil, aortitis, ao root aneurysm
Characteristics of 2˚ Lyme dz
Arthralgias, migratory polyarthropathies, Bell's palsy, myocarditis
24 yo M presents with soft white plaques on his tongue and back of his throat. Dx? W/u? Tx?
-Dx: candidal thrush
-W/u: include HIV test
-Tx: nystatin oral suspension
Begin PJP prophy in HIV+ pt at what CD4 count? Mycobacterium avium-intracellulare (MAI) prophy?
-PJP: ≤200 (with TMP-SMX)
-MAI: ≤50-100 (with clarithromycin/azithromycin)
RFs for pyelonephritis
Pregnancy, vesicoureteral reflux (VUR), anatomic anomalies, indwelling catheters, kidney stones
Neutropenic nadir post chemo
Lesion of 1˚ Lyme dz
Classic physical findings for endocarditis
Fever, heart murmur, Osler's nodes, splinter hemorrhages, Janeway lesions, Roth's spots
Aplastic crisis in sickle cell dz
Ring-enhancing brain lesion on CT with szs
Taenia solium (cysticercosis)
Organism: branching rods in oral infxn
Organism: painful chancroid
Organism: dog or cat bite
Organism: pregnant F with pets
Organism: meningitis in adults
Organism: meningitis in elderly
Organism: alcoholic with PNA
Organism: "currant jelly" sputum
Organism: infxn in burn victims
Organism: osteomyelitis from foot wound puncture
Organism: osteomyelitis in a sickle cell pt
55 yo M who is a smoker and heavy drinker presents with a new cough and flu-like sxs. Gram stain: no organisms. Silver stain of sputum: GNRs. Dx?
Middle-aged M presents with acute-onset monoarticular jt pain and b/l Bell's palsy. Likely dx? How did he get it? Tx?
-Dx: Lyme dz
Pt develops endocarditis 3 weeks after receiving a prosthetic heart valve. What organism is suspected?
S. aureus or S. epidermidis