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Flashcards in ID 7 Deck (51):
1

classic source of yersinia

pet feces from puppies + contaminated milk + pork

2

cause of pseudo appendicitis with yersinia?

mesenteric adenitis or inflammation of terminal ileum.

3

h pylori triple positive?

catalase, oxidase, and urease positive

4

treatment for h pylori?

amoxicillin + clarithromycin + PPI

5

what do you give someone for h pylori if they have a penicillin allergy?

metronidazole

6

biggest spirochete?

borrelia (borrelia is big). Thus, only one that can stained and seen with light microscopy.

7

leptospirosis presentation

flu-like symptoms + calf myalgia + jaundice + photophobia with conjunctival suffusion (erythema without exudate)

8

other name for Weil disease

icterohemorrhagic leptospirosis

9

Weil disease presentatoin

severe form of leptospirosis with jaundice and azotemia from liver and kidney dysfunction + fever + hemorrhage + anemia.

10

what type of organism is babesia?

protozoan

11

stage 2 lyme disease

Early disseminated: secondary lesions + carditis + AV block + bell palsy + migratory myalgias/transient arthritis

12

stage 3 lyme disease

late disseminated: encephalopathies + chronic arthritis

13

latent syphilis

positive serology without symptoms

14

secondary syphilis characteristics

1) disseminated disease
2) *patchy hair loss

15

Difference between VDRL/RPR and FTA-ABS?

VDRL/RPR is nonspecific and needs to be confirmed with FTA-ABS, which is specific.

16

signs of tabes dorsalis

1) broad-based ataxia
2) positive romberg
3) charcot joint
4) stroke without hypertension

17

neurosyphilis

tabes dorsalis or general paresis

18

general paresis

Severe neuropsychiatric disorder caused by chronic syphilis meningoencephalitis that leads to cerebral atrophy.

19

neurosyphilis diagnosis

Test spinal fluid with VDRL + FTA-ABS + PCR.

20

What are rhagades?

linear scars at angle of mouth, characteristic of congenital syphilis.

21

How do you prevent congenital syphilis?

Treat mother early in pregnancy (placental transmission typically occurs after first trimester)

22

snuffles?

nasal discharge

23

congenital syphilis presentation

1) rhagades
2) snuffles
3) saddle nose
4) notched/Hutchinson teeth
5) mulberry molars
6) short maxilla
7) saber shins
8) CN VIII deafness

24

What does VDRL detect?

antibody reacting to beef cardiolipin

25

VDRL characteristics

sensitive but not specific

26

false positives on VDRL?

In back corner Anna’s dad holding wheelchair + josh in a net on left + Claire with a rifle on right + sugar cane + lepromatous guy on rachel’s lap + Rachel Ancar in a wheelchair + prostitute covered in sugar cane laying on shelf above/false positives on VDRL can be due to viral infection (mono, hepatitis) + drugs (chlorpromazine; procainamide) + rheumatic fever + lupus + leprosy + anticardiolipin antibodies (APA syndrome).

27

Jarisch-herxheimer presentation

fever + chills + headache + myalgia

28

borrelia recurrentis disease?

relapsing fever (borrelia RECURRENTis)

29

borrelia recurrentis source?

Lice

30

Why do lice cause recurring fever?

variable surface antigens

31

other name for brucellosis?

undulant fever

32

brucella source?

unpasteurized dairy

33

coxiella burnetii source?

aerosols of cattle/sheep amniotic fluid

34

ehrlichia source

amblyomma (lone star tick)

35

pasteurella multocida causes...

1) cellulitis
2) *osteomyelitis

36

pasteurella multocida sources

cat or dog bite or other animal bite

37

rickettsia prowazekii transmission and source

human to human via human body lice

38

rickettsia rickettsia causes

rocky mountain spotted fever

39

rickettsia rickettsia source

dermacentor (dog tick)

40

rickettsia typhi source

fleas

41

Don't confuse yersinia pestis with yersinia enterocolitica

ok

42

yersinia pestis source

fleas

43

gardnerella sex caveat

associated with sexual activity but not sexually transmitted

44

clue cell description

cell with "stippled" appearance along outer margin

45

gardnerella diagnosis

amine whiff test--mixing discharge with 10% of KOH enhances fishy odor.

46

r typhi presentation

rash starts centrally and spreads out

47

rocky mountain spotted fever triad

headache + fever + rash (vasculitis)

48

characteristic path finding with ehrlichiosis

monocytes with morulae (mulberry like inclusions)

49

characteristic path finding with anaplasmosis

granulocytes with morulae

50

Q fever presentation

pneumonia

51

Why is Q fever queer?

No rash or vector and coxiella can survive outside in endospore form. Not in rickettsia genus.