ID: Spirochette/Chlamydial/Rickettsial infections

Question 1

aortic tree bark appearance

Answer 1

syphilis

Question 2

pannus apperance of scar in cornea

Answer 2

Trachoma

Chlamydial infection

Question 3

Chlamydial infection transmitted birds to humans?

Answer 3

C. psittaci

Question 4

Rickettsial infections can be divided into..

Answer 4

1. spotted fever group

2. typhus group

Question 5

agent in rocky mount spotted fever? what vector transmits it?

Answer 5

rickettsia ricketti

tick bites

Question 6

describe the rash in RMSF

Answer 6

petechial and purpuric

Question 7

what medication for RMSF

Answer 7

doxy

Question 8

what is the agent in louse borne typhus

Answer 8

rickettsia prowazekii

Question 9

if R. prowazekii goes latent, what infection can it produce many years later?

Answer 9

recrudescent disease (brill zinsser disease)

Question 10

what is weil disease

Answer 10

icterohemorrhagic leptospirosis

severe form with jaundice and azotemia from liver and kidney dysfunction, fever, hemorrhage and anemia

Question 11

how could you visualize treponems in a painless chancre from primary syphilis

Answer 11

dark field microscopy

Question 12

what lesion is characteristic of secondary syphilis

Answer 12

condylomata lata

Question 13

what is argyll robertson pupil and hen is it seen

Answer 13

constricts with accommodation but not reactive to light

tertiary syphilus

Question 14

baby is born with rhagades what are these and what disease. what else can you see in these babies

Answer 14

linear scars at angle of mouth seen in congenital syphilis

saddle nose, notched (hutchinson) teeth, mulberry molars, short maxilla, saber shins,

Question 15

what state are you most likely to see RMSF in

Answer 15

north carolina

Question 16

how does rash spread in RMSF

Answer 16

starts on wrists and ankles and spreads to trunk, palms and soles

Question 17

describe the rash in endemic louse born typhus

Answer 17

rash starts centrally and spreads out, sparing palms and soles

“Rickettsii on the wRists, Typhus on the Trunk

Question 18

what is the most common cause of culture negative endocaritis

Answer 18

coxiella burnetti

Q fever

Question 19

chlamydial trachomatis serotypes A, B and C cause what disease

Answer 19

chronic infection causes blindness due to follicular conjuctivitis in AFrica

Question 20

chlamydial trachomatis serotypes D-K cause what disease

Answer 20

STD

urethritis/PID, ectopic prego, neonatal pneumonia with eosinophilia

Question 21

chlamydial trachomatis serotypes L1, L2, L3 cause what disease

Answer 21

lymphogranuloma venereum

small painless ulcers on genitals and swollen painful inguinal lymph nodes that ulcerate (buboes)

Question 22

tell me about what the titers are in mycoplasma pneumoniae

Answer 22

high titer of cold agglutinins (IgM) which can agglutinate or lyse RBCs