ID 7

Question 1

classic source of yersinia

Answer 1

pet feces from puppies + contaminated milk + pork

Question 2

cause of pseudo appendicitis with yersinia?

Answer 2

mesenteric adenitis or inflammation of terminal ileum.

Question 3

h pylori triple positive?

Answer 3

catalase, oxidase, and urease positive

Question 4

treatment for h pylori?

Answer 4

amoxicillin + clarithromycin + PPI

Question 5

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

Answer 5

metronidazole

Question 6

biggest spirochete?

Answer 6

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

Question 7

leptospirosis presentation

Answer 7

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

Question 8

other name for Weil disease

Answer 8

icterohemorrhagic leptospirosis

Question 9

Weil disease presentatoin

Answer 9

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

Question 10

what type of organism is babesia?

Answer 10

protozoan

Question 11

stage 2 lyme disease

Answer 11

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

Question 12

stage 3 lyme disease

Answer 12

late disseminated: encephalopathies + chronic arthritis

Question 13

latent syphilis

Answer 13

positive serology without symptoms

Question 14

secondary syphilis characteristics

Answer 14

1) disseminated disease

2) *patchy hair loss

Question 15

Difference between VDRL/RPR and FTA-ABS?

Answer 15

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

Question 16

signs of tabes dorsalis

Answer 16

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

Question 17

neurosyphilis

Answer 17

tabes dorsalis or general paresis

Question 18

general paresis

Answer 18

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

Question 19

neurosyphilis diagnosis

Answer 19

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

Question 20

What are rhagades?

Answer 20

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

Question 21

How do you prevent congenital syphilis?

Answer 21

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

Question 22

snuffles?

Answer 22

nasal discharge

Question 23

congenital syphilis presentation

Answer 23

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

Question 24

What does VDRL detect?

Answer 24

antibody reacting to beef cardiolipin

Question 25

VDRL characteristics

Answer 25

sensitive but not specific

Question 26

false positives on VDRL?

Answer 26

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).

Question 27

Jarisch-herxheimer presentation

Answer 27

fever + chills + headache + myalgia

Question 28

borrelia recurrentis disease?

Answer 28

relapsing fever (borrelia RECURRENTis)

Question 29

borrelia recurrentis source?

Answer 29

Lice

Question 30

Why do lice cause recurring fever?

Answer 30

variable surface antigens

Question 31

other name for brucellosis?

Answer 31

undulant fever

Question 32

brucella source?

Answer 32

unpasteurized dairy

Question 33

coxiella burnetii source?

Answer 33

aerosols of cattle/sheep amniotic fluid

Question 34

ehrlichia source

Answer 34

amblyomma (lone star tick)

Question 35

pasteurella multocida causes…

Answer 35

1) cellulitis

2) *osteomyelitis

Question 36

pasteurella multocida sources

Answer 36

cat or dog bite or other animal bite

Question 37

rickettsia prowazekii transmission and source

Answer 37

human to human via human body lice

Question 38

rickettsia rickettsia causes

Answer 38

rocky mountain spotted fever

Question 39

rickettsia rickettsia source

Answer 39

dermacentor (dog tick)

Question 40

rickettsia typhi source

Answer 40

fleas

Question 41

Don’t confuse yersinia pestis with yersinia enterocolitica

Answer 41

ok

Question 42

yersinia pestis source

Answer 42

fleas

Question 43

gardnerella sex caveat

Answer 43

associated with sexual activity but not sexually transmitted

Question 44

clue cell description

Answer 44

cell with “stippled” appearance along outer margin

Question 45

gardnerella diagnosis

Answer 45

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

Question 46

r typhi presentation

Answer 46

rash starts centrally and spreads out

Question 47

rocky mountain spotted fever triad

Answer 47

headache + fever + rash (vasculitis)

Question 48

characteristic path finding with ehrlichiosis

Answer 48

monocytes with morulae (mulberry like inclusions)

Question 49

characteristic path finding with anaplasmosis

Answer 49

granulocytes with morulae

Question 50

Q fever presentation

Answer 50

pneumonia

Question 51

Why is Q fever queer?

Answer 51

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