Nonstaining Bacteria Flashcards

1
Q

Gardnerella vaginalis

A

bacterial vaginosis
lactobacillus decrease –> increased gram - rods

Gray vaginal discharge w/ fishy smell
pH >4.5

clue cell - vaginal cell covered w/ coccobacilli

Risk: new or multiple sex partners

Tx: 7 days metronidazole PO or metronidazole cream

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2
Q

Chlamydia trachomatis

A

–> reactive arthritis

Type A-C:
trachoma - eye infection
–> crhonic scarring, corneal damage –> blindness

Type D-K:
Urethritis, cervicitis, PID –> infertility, ectopic pregnancy
subclinical infection

Tx: azithromycin 1 time dose

Neonatal conjunctivitis and pneumonia
-oral arithromycin or erytromycin

Type L1-L3:
Lymphogranuloma venereum
-genital ulcer
-u/l LAD - bubos like  "groove sign"
-proctitis
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3
Q

Rickettsiae spp.

A

don’t gram stain well
Giemsa stain

Rickettsial triad: HA, fever, rash
tx: doxycycline

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4
Q

Rickettsia rickettsii

A

Rocky mtn spotted fever
sx: rash on palms and soles then spreads to center

Rickettsial triad: HA, fever, rash
tx: doxycycline

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5
Q

Rickettsia prowazekii

A

epidemic typhus
head and body lice
rash starts centrally and spreads

Rickettsial triad: HA, fever, rash
tx: doxycycline

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6
Q

Rickettsia typhi

A

endemic “murine” typhus

flease

central rash –> periphery

Rickettsial triad: HA, fever, rash
tx: doxycycline

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7
Q

Ehrlichia chaffeensis vs Anaplasma phagocytophilum

A

EC:
human monocytic ehrlichiosis (HME)
Lone star tick

AP:
human granulocytic anaplasmosis (HGA)
Ixodes scapularis (coinfection w/ Lyme dz common)

both:
febrile sn
HA, nonspecific sx

dx: morulae inclusion w/in monocyte or granulocyte
tx: doxycycline

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8
Q

Coxiella burnetii

A

Q fever

sporulation like process - protects
-survive external environment

Farm animals
aerosols - urine and feces - downwind of farm too
animal placenta
unpasturized milk

acute flu like illness w/ pneumonia
–> chronic illness w/ endocarditis

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9
Q

Chlamydophila psittaci

A

avian reservoir - parrot

psittacosis - pneumonia sn

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10
Q

Chlamydophila pneumoniae

A

atypical penumonia
prolonged mild “walking pneumonia”

tx: doxycycline

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