rapid micro

Question 1

infects prosthetic devices and catheters by producing adherent biofilms

Answer 1

Staphylococcus epidermidis

FA 128, M12

Question 2

ASO antibody titers in patient following pharyngitis infection

Answer 2

streptococcus pyogenes; diagnose rheumatic fever
enzyme: streptolysin O
FA 125, 129, m28

Question 3

PNA in CF patient

cat positive, gram negative bacteria

Answer 3

Psuedomonas or burkholderia cepacia

m93, 172, 84

Question 4

blue-green colonies with fruity odor on culture dish

UTI

Answer 4

Pseudomonas aeruginosa

174

Question 5

Ecthyma gangrenosum in immunocompromised patient

Answer 5

Pseudomonas aeruginosa; rapidly progressive nectoric cutaneous lesion
137

Question 6

epiglottitis in pediatric patient

Answer 6

Haemophilus influenzae

136, 179, m101

Question 7

primary cause of meningitis in children from 3 to 36 months of age. complications include retardation, seizures, deafness, and death

Answer 7

H. influenzae Type B

m101, 136

Question 8

grows on chocolate agar, has factors V and X

Answer 8

H influenzae; 121

Question 9

painful genital ulcer with exudate and inguinal adenopathy

Answer 9

chancroid; Haemophilus ducreyi

177, m100

Question 10

dysuria, fishy smell in vagina

i. what is seen on smear
ii. bacteria

Answer 10

i. clue cells
ii. gardnerella vaginalis
m102, 142

Question 11

bordet-gengou agar

Answer 11

Bordetella pertussis
whooping cough
121, 124 is toxin

Question 12

Regan-Lower medium

Answer 12

charcoal, blood, and antibiotic

bordetella pertussis 121

Question 13

Infant with whooping cough

mechanism of toxin?

Answer 13

pertussis toxin (124)
increased cAMP via Gi disabling, impaired phagocytosis to permit survival
m102

Question 14

reservoir for legionella pneumophila

Answer 14

AC system, cooling twoers, hot water tanks

137, m102

Question 15

charcoal yeast extract agar buffered with cystein and iron

Answer 15

legionella

121, 137, m102

Question 16

headache, fever, myalgias, fatigue.

bacteria grows on charcoal yeast extract agar with cystein and iron

Answer 16

Pontiac disease from legionella

121, 137

Question 17

severe unilateral PNA, fever, GI, CNS smptoms. culture grows gram negative stained with silver

Answer 17

legionella pneumophila

137, m102

Question 18

purulent discharge from urethra; facultative intracellular microbe

Answer 18

Neisseria gonorrhoeae

136

Question 19

tranmission of yersinia pestis

Answer 19

fleas
rat and prairie dogs are reservoirs
142, m 108

Question 20

groin lymph node is swollen, red, hot and tender, high fever, conjunctivitis

Answer 20

bubonic plague; yersinia pestis; m108

Question 21

diarrhea, enterocolitis, transmitted from puppy feces at home

Answer 21

Yersinia entercolitica

diarrhea: 172, 139,

Question 22

ingestion of unpasteurized milk; indulating fevers

Answer 22

Brucellosis; Brucella spp

m 109, 142

Question 23

dog or cat bite causing cellulitis

Answer 23

Pasteurella multocida

179, 142, m 108

Question 24

tick, rabbit, deer bite with ulcer at the bite, typhoidal symptoms (abdominal pain, fever)

Answer 24

Francisella tularensis

fac. intra,122. 142. m108

Question 25

ox 19, ox 2 positive

Answer 25

Rickettsia rickettsii, m117 143 Weil-felix reaction

Question 26

life cycle of chlamydiae; which part is infectious

Answer 26

``` elementary body (infectious) reticulate body (replicates in cells) 144, m 122 ```

Question 27

trachoma

Answer 27

scarring of inside of eye lid; found in underdeveloped countries due to chlamydiae 144, m122

Question 28

Reiter's syndrome

Answer 28

triad of conjunctivitis, urethritis, arthritis caused by Chlamydia trachomatis 144, m122, 432

Question 29

female patient presents and has been trying to have children, unable to get pregnant also has fitz-hugh-curtis

Answer 29

infertility; 178 | due to chlamydiae, 144

Question 30

viral like atypical PNA with fever, dry cough | vector is bird and parrots

Answer 30

chlamydophila psittaci psittacosis 142, 144, 172 is PNA

Question 31

rash on wrists, palms in south carolina | how does it cause rash

Answer 31

damage to endothelial cells, causing superficial vasculitis Ricketssia rickettsii, vector is tick 143, 142, m 124

Question 32

fever, conjunctival injection, severe HA, rash on wrists, palms, becomes more generalized later

Answer 32

rocky mountain spotted fever | 143, m124

Question 33

Rickettsial pox i. def ii. reservoir iii. weil-felix reaction

Answer 33

vesicular rash similar to small pox ii. mites is tranmission, mice iii. weil felix negative m124

Question 34

abrupt onset of fever, HA, rash sparing the palms soles and face, stupor, gangrene of hands or feet

Answer 34

epidemic louse-borne typhus rickettsia prowazekii 142, m124, 143

Question 35

abdrupt onset of fever, rash starting on trunk going out but sparing palms and soles and face. i. weil felix reaction

Answer 35

OX19+, 2 - and K- epidemic typhus - human body louse, R prowazekii m 124, 142, 143

Question 36

rash on trunk, going to extremities fever. OX-19+ endemic typhi i. vector

Answer 36

rat flea | m124, 143

Question 37

fever, headache, back pain lasting for 5 days and recurring 5 day intervals

Answer 37

trench fever | Bartonella quintana, m 126

Question 38

cat scratch transmission i. bacteria ii. skin symptom iii. what heart disease

Answer 38

i. Bartonella henselae ii. Bacillary angiomatosis 301 iii. culture neg bacterial endocarditis 298 m126

Question 39

fever, headache, viral like PNA, no rash i. disease ii. bacteria iii. vector

Answer 39

Q fever coxiella burnetii iii. no arthropod - spores on goat hide 143,

Question 40

pt with fever, headache, injected conjunctiva berry-like inclusions seen in monocytes in cytoplasm i. bacteria ii. vector

Answer 40

i. Ehrlichia chaffeensis; ehrlichiosis rash is rare ii. Ambylomma (lone star tick)

Question 41

syphilitic infection with neg VDRL , pos FTA-abs

Answer 41

successfully treated syphillis | m133

Question 42

syphilis infection with VDRL neg, FTA neg

Answer 42

syphilis unlikely however could have AIDS or was recently infected m133

Question 43

syphilis infection with serologic testing: VDRL pos, FTA neg

Answer 43

probably false positive syphilis

Question 44

gummas of skin and bone

Answer 44

tertiary syphilis 141, m 138 treponema pallidum but could also be caused by treponema pertenue (tropical region syphilis, m138)

Question 45

condyloma lata | will also have what other symptom?

Answer 45

smooth, moist painless wart-like white lesions on genitals seen in secondary syphilis maculopapular rash around body 141, m 138

Question 46

wide slapping gait, sensory ataxia, argyl robertson pupil i degeneration of what ii. bacteria iii. serologic testing would show what

Answer 46

degeneration of dorsal columns AND roots ii. Treponema pallidum iii. VDRL + and FTA-ABS + 141, m 139

Question 47

acute worsening of symptoms after starting antibiotics with pt with syphilis

Answer 47

Jarisch Herxheimer flu like syndorme, fever, chills, HA, myalgia due to released endotoxins 141, m 138

Question 48

saber shins, rhagades, CN VIII deafness | when did this patient contract infection

Answer 48

in utero, Treponema pallidum | 141, 175, m138

Question 49

rash with bullseye appearance

Answer 49

Borrelia burgdorferi Ixodes deer tick bite 140, 626 erythema chronicum migrans

Question 50

monoarthritis, migratory polyarthritis, cardiac av nodal heart block i. vector ii. bacteria

Answer 50

Lyme disease, Ixodes deer tick Borrelia burdgorferi 140, m 140

Question 51

calve pain, jaundice, photophobia with conjuctival suffusion (erythema without exudate) i. bacteria ii. transmission iii. prevelance where

Answer 51

i. leptospira interrogans ii. animal urine iii. surfers and tropics like hawaii 140, m 140

Question 52

jaundice, kidney dysfunction, fever, anemia, after exposure to animal urine

Answer 52

Weil disease, icterohemorrhage leptospirosis | 140, 142