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FA Step 2 Rapid Review > Infectious Disease > Flashcards

Infectious Disease Flashcards

1
Q

4 s/sxs of streptococcal pharyngitis

A

Fever, pharyngeal erythema, tonsillar exudate, lack of cough

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2
Q

Non-suppurative complication of streptococcal infxn that is not altered by tx of 1˚ infxn

A

Postinfectious glomerulonephritis

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3
Q

Asplenic pts are particularly susceptible to these organisms

A

Encapsulated organisms: pneumococcus, meningococcus, Haemophilus influenzae, Klebsiella

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4
Q

of bacteria on a clean-catch specimen to dx a UTI

A

10^5 bacteria/mL

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5
Q

Which healthy population is susceptible to UTIs?

A

Pregnant F. Tx this group aggressively bc of potential complications.

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6
Q

Pt rom California or Arizona presents with fever, malaise, cough, and night sweats. Dx? Tx?

A
  • Dx: coccidiomycosis

- Tx: amphotericin B

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7
Q

Nonpainful chancre

A

1˚ syphilis

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8
Q

“Blueberry muffin” rash is characteristic of what congenital infxn?

A

Rubella

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9
Q

Meningitis in neonates: Causes? Tx?

A
  • Causes: GBS, E. coli, Listeria

- Tx: gent and amp

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10
Q

Meningitis in infants: Causes? Tx?

A
  • Causes: Pneumococcus, meningococcus, H. flu

- Tx: cefotaxime and vanco

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11
Q

What should always be done prior to LP?

A

Check for increased ICP; look for papilledema

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12
Q

CSF findings: (L) glucose, PMN predominance

A

Bacterial meningitis

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13
Q

CSF findings: nl glucose, lymphocytic predominance

A

Aseptic (viral) meningitis

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14
Q

CSF findings: numerous RBCs in serial CSF samples

A

Subarachnoid hemorrhage (SAH)

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15
Q

CSF finding: increased gamma globulins

A

MS

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16
Q

Initially presents with a pruritic papule with regional LAD; evolves into a black eschar after 7-10 days. Tx?

A

Cutaneous anthrax. Tx with pen G or cipro.

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17
Q

Findings in 3˚ syphilis

A

Tabes dorsalis, general paresis, gummas, Argyll Robertson pupil, aortitis, ao root aneurysm

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18
Q

Characteristics of 2˚ Lyme dz

A

Arthralgias, migratory polyarthropathies, Bell’s palsy, myocarditis

19
Q

Cold agglutinins

A

Mycoplasma

20
Q

24 yo M presents with soft white plaques on his tongue and back of his throat. Dx? W/u? Tx?

A
  • Dx: candidal thrush
  • W/u: include HIV test
  • Tx: nystatin oral suspension
21
Q

Begin PJP prophy in HIV+ pt at what CD4 count? Mycobacterium avium-intracellulare (MAI) prophy?

A
  • PJP: ≤200 (with TMP-SMX)

- MAI: ≤50-100 (with clarithromycin/azithromycin)

22
Q

RFs for pyelonephritis

A

Pregnancy, vesicoureteral reflux (VUR), anatomic anomalies, indwelling catheters, kidney stones

23
Q

Neutropenic nadir post chemo

A

7-10 days

24
Q

Erythema migrans

A

Lesion of 1˚ Lyme dz

25
Q

Classic physical findings for endocarditis

A

Fever, heart murmur, Osler’s nodes, splinter hemorrhages, Janeway lesions, Roth’s spots

26
Q

Aplastic crisis in sickle cell dz

A

Parvovirus B19

27
Q

Ring-enhancing brain lesion on CT with szs

A

Taenia solium (cysticercosis)

28
Q

Organism: branching rods in oral infxn

A

Actinomyces israelii

29
Q

Organism: painful chancroid

A

Haemophilus ducreyi

30
Q

Organism: dog or cat bite

A

Pateurella multocida

31
Q

Organism: gardener

A

Sporothrix schenckii

32
Q

Organism: pregnant F with pets

A

Toxoplasma gondii

33
Q

Organism: meningitis in adults

A

Neisseria meningitidis

34
Q

Organism: meningitis in elderly

A

Strep pneumo

35
Q

Organism: alcoholic with PNA

A

Klebsiella

36
Q

Organism: “currant jelly” sputum

A

Klebsiella

37
Q

Organism: infxn in burn victims

A

Pseudomonas

38
Q

Organism: osteomyelitis from foot wound puncture

A

Pseudomonas

39
Q

Organism: osteomyelitis in a sickle cell pt

A

Salmonella

40
Q

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?

A

Legionella PNA

41
Q

Middle-aged M presents with acute-onset monoarticular jt pain and b/l Bell’s palsy. Likely dx? How did he get it? Tx?

A
  • Dx: Lyme dz
  • Ixodes tick
  • Tx: doxycycline
42
Q

Pt develops endocarditis 3 weeks after receiving a prosthetic heart valve. What organism is suspected?

A

S. aureus or S. epidermidis

43
Q

3 MCC of fever of unknown origin (FUO)

A

Infxn, CA, autoI dz

FA Step 2 Rapid Review (17 decks)

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