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Spring ClinMed > Infectious Disease Overview > Flashcards

Infectious Disease Overview Flashcards

1
Q

MC travel related causes of febrile illness

A

Malaria
Enteric- typhoid, shigella
Hepatitis
Amebic- giardia

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2
Q

Streptococcus appearance

A

Gram +

cocci in pairs and chains

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3
Q

What lancefield criteria is MC for strep

A

Group A

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4
Q

Which strep subgroup doesn’t possess Lancefield antigens?

A

Strep mitis

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5
Q

When are enterococcus pathogenic?

A

Once they enter the blood stream

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6
Q

how are enterococcus spread?

A

Person to person

normally found in GI and female GU as normal flora

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7
Q

Tx for E. faecium

A

Linezolid, Daptomycin, Quinupristin-Dalfopristin - Synercid

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8
Q

Tx for E. faecalis

A

Linezolid, Daptomycin, Quinupristin-Dalfopristin

  • NOT syndercid
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9
Q

MCC impetigo

A

Group A Strep- strep pyogenes

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10
Q

MC organism in necrotizing fasciitis

A

MC polymicrobial

GAS, S aureus…

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11
Q

Rapidly spreading erythematous lesion

with pain out of proportion to PE consider

A

Necrotizing Fasciitis

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12
Q

TX for toxic shock

A

SX consult ASAP
Abx
Specific IVIG to neutralize toxin
~pressors, ventilation, transfusions, fluids

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13
Q

Cause of botulism

A

Clostridium botulinum

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14
Q

Description of C. botulinum

A

anaerobic, spore forming bacillus found in soil

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15
Q

How to dx botulism

A

Toxin ID via mouse antiserum after inoculation of patient’s serum into the mouse

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16
Q

Treatment of botulism

A

supportive

CDC has anti-toxin available

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17
Q

Cause of Anthrax

A

Bacillus anthracis

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18
Q

What organism are likely carriers of anthrax

A

sheep, goats, horses, swine zoonosis

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19
Q

Cause of cholera

A

toxin of Vibrio cholera activating adenylyl cyclase

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20
Q

profuse rice water diarrhea think

A

Cholera- Vibrio cholera

21
Q

Treatment for Cholera

A

Fluids- PO or IV-lactated ringers
Bactrim or Quinolone (test for resistance)
Temporary vaccine

22
Q

opisthotonos

A

severe hyperextension/spasticity

-seen with tetanus, TBI, and cerebral palsy

23
Q

Cause of tetanus

A

Clostridium tetani

neurotoxin- tetanospasm

24
Q

SXS of fever, pea soup, bradycardia, and pink popular rash on trunk

A 
Enteric fever (Typhoid)
-Salmonellosis
25
Q

Treatment of typhoid enteric fever

A

Fluoroquinolone

26
Q

contact with reptiles think…

A

Salmonellosis gastroenteritis

27
Q

Shigella HLA

A

HLA- B27 - reactive arthritis

28
Q

grey tenacious membrane of tonsils and pharynx

A

Diphtheria

29
Q

Neisseria gonorrhea gram stain results

A

Gram – intracellular diplococcus

Requires Thayer-martin agar to grow

30
Q

Treatment of Neisseria gonorrhea

A

Ceftriaxone, Cefixime,

2nd line – Azithromycin 2gm x 1

31
Q

Neisseria meningitides culture will test positive for

A

the enzyme cytochrome C oxidase

32
Q

College freshman living in dorm presents with n/v and stiff neck

A

Neisseria meningitidis

33
Q

Waterhouse-Friderishsen syndrome

A

acute adrenal hemorrhage

-Neisseria meningitidis

34
Q

Close contacts of pt with Neisseria meningitidis should receive

A

Rifampin

alternative: Cipro

35
Q

Prevention of Neisseria meningitis

A

MCV4 vaccine

36
Q

Ehrlichiosis gram stain

A

Gram - obligate intracellular

37
Q

Blood smear showing Morula

A

Ehrlichiosis

38
Q

Treatment for Ehrilichiosis

A

Doxycycline

Rifampin in prego/peds

39
Q

from birds/parrots

A

Chlamydia psittaci

40
Q

Cat bites

A

Pasturella

tx with Augmentin

41
Q

Human bites

A

Eikinella

tx with Augmentin

42
Q

Cat scratch disease

A

Bartonella henselae

43
Q

spread via body lice and OI in AIDS pts causing bacillary angiomatosis

A

Bartonella guitana

44
Q

HHV 5 is

A

CMV

45
Q

HHV 4 is

A

EBV

46
Q

West Nile Virus is a

A

Flavivirus

47
Q

HSV1 is

A

common cold sore

48
Q

HSV2 is

A

genital herpes

49
Q

which HSV is more likely to cause herpanginga/ pharyngotonsillitis

A

HSV1

ddx viral: HSV2, enterovirus 71

Spring ClinMed (4 decks)

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