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ID Boards > Q Set D > Flashcards

Q Set D Flashcards

1
Q

Listeria Rhombencephalitis

A
  • healthy people
  • biphasic
  • ring enhancing abscesses
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2
Q

Rhombencephalitis ddx

A
  • Listeria, enterovirus 71, HSV, HHV-6, EBV, MTB

- Behcet’s

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3
Q

mcr-1

A

polymyxin resistance

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4
Q

Scedosporium

A
  • assoc with near drowning
  • lung, CNS, invasion from sinuses
  • tx: vori
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5
Q

Rheumatic fever

A
  • carditis (heart block), polyarthritis, erythema marginatum (serpiginous), fever
  • elevated ASO or DNAase B, ESR, CRP
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6
Q

Ixodes tick

A

Borrelia (burgdorferi, myamotoi)
Anaplasma
Babesia
Powassan

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7
Q

ART: Rise in Cr

A

dolutegravir, bic, cobi

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8
Q

Erythrasma

A

Corynebacterium minutissimum

  • coral red with UV Woods lamp
  • inguinal areas, dry, asx
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9
Q

Erysipelas

A
  • acute onset sx, F, chills
  • clearly demarcated
  • upper dermis + superficial lymphatics
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10
Q

TB & HIV

A
  • if CD4 <50 –> start TB tx immediately, then ART within 2 wks
  • if CD4 >50 –> start TB tx immediately, then ART within 8-12 wks
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11
Q

Epiglottitis

A
  • “worst sore throat of my life”, spitting instead of swallowing d/t pain
  • normal pharyngeal exam
  • thumb sign on lateral XR
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12
Q

ERM gene

A

inducible macroline resistance

-often carried by M abscessus

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13
Q

Atazanavir AE

A

indirect hyperbilirubinemia (jaundice)

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14
Q

Bacteria Resistant to Polymixins

A

MaPPS

Morganella and Providencia, Proteus, Serratia

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15
Q

Plague

A
  • Yersinia pestis
  • plague pneumonia - infected cats appear to be choking
  • or regional LAD after bite from rodent fleas
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16
Q

Psittacosis

A
  • exposure to birds
  • HA, slightly low WBC, pna, red spots rash, splenomegaly
  • tx doxy
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17
Q

Paragonimus westermani

A
  • lung fluke
  • East Asia
  • FW crayfish/crabs
  • pulm sx (hemoptysis) + GI sx
18
Q

Mycobacterium chimaera

A
  • prosthetic valve endocarditis

- heater-cooler units in OR

19
Q

TB meningitis

A
  • basilar meningitis, lymphocyte predominant
  • can have leptomeningeal enhancement
  • RF: anti TNF agent (infliximab)
20
Q

Aeromonas hydrophila

A
  • freshwater injuries (hurricanes, tsunami)
  • leeches, polluted water, pools
  • mostly commonly causes diarrhea
21
Q

Skin lesions associated with anti-TNF agents

A
  • eczema, psoriasis, xerosis cutis, palmoplantar pustulosis

- used for IBD

22
Q

mprF

A

-daptomycin resistance in S aureus

23
Q

vanA

A
  • vancomycin resistance to S aureus

- MIC>8

24
Q

hyper-IgE syndrome

A
  • STAT3 mutation
  • recurrent candidiasis, bacterial pna, skin abscesses
  • “Job’s syndrome”
25
Q

Disseminated MAC

A
  • adult: acquire auto-antibody in interferon gamma function

- child: interferon gamma receptor deficiency

26
Q

Acute schistosomiasis

A

Katayama fever

  • F, abd pain, eosinophilia
  • exposure to FW
27
Q

Fanconi’s syndrome

A
  • TDF >1 yr

- proteinuria, glycosuria, low phos

28
Q

IUD

A

Actinomyces

-no need for IUD removal or abx tx

29
Q

denture stomatitis

A

form of oral candidiasis

-pain + erythema, no white plaques

30
Q

Lymphocytic choriomeningitis virus

A
  • winter, rodent exposure, high CSF WBC for viral (>1000)

- otherwise nonspecific: HA, myalgias, meningismus

31
Q

Hantaviruses

A
  • worldwide, rodents
  • viral hemorrhagic fever (with renal sx in old world)
  • Sin Nombre (SW US, Lat Amer) –> pulmonary syndrome
32
Q

Africa viral hemorrhagic fevers

A

Ebola (bat)
Marburg (bat)
Lassa (rodent)

33
Q

Travelers diarrhea (dysentery + F) tx

A

azithromycin (campy, Salmonella, Shigella)

34
Q

Most communicable enteric pathogens

A

Shigella

Norovirus (V)

35
Q

Legionella

A
  • contaminated water aerosols

- severe pna, hyponatremia

36
Q

Hantaan

A
  • viral hemorrhagic fever with renal sx

- east Asia

37
Q

Hep B treatment

A
  • active replication + necroinflamation (LFTs or bx)
  • HBeAg neg: >2,000
  • HBeAg pos: >20,000
  • Pregnant: >200,000
  • entecavir or tenofovir
38
Q

Legionella precautions

A

standard (not transmitted person to person)

39
Q

F, Leukopenia, Thrombocytopenia, elevated LFTs after a tick bite

A

Ehrlichiosis or Anaplasmosis

tx: doxy

40
Q

Looks like ehrlichiosis but not responsive to doxy

A

Heartland virus

-missouri/TN

41
Q

Lyme disease tx in pregnancy

A

-amoxicillin

avoid tetracyclines

42
Q

mcr-1

A

polymyxin resistance

-modifies lipid A so polymyxins bind less well

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