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Flashcards in ID 8 Deck (49):
1

How does elementary body of chlamydia enter cell?

endocytosed

2

chlamydia life cycle

elementary body enfects cell --> endocytose --> reticulate body replicates by fission --> reorganizes into elementary bodies

3

ophtho presentation of chlamydia

follicular conjunctivitis, which can lead to blindness

4

chlamdyophilia pneumonia and psittaci transmission

aerosol

5

characteristic finding with chlamydia neonatal pneumonia

staccato cough + eosinophilia

6

STD caused by chlamydia

lymphogranuloma venereum

7

serotypes that cause lymphogranuloma venereum?

L1,L2,L3

8

treatment options for mycoplasma

1) macrolides
2) doxycycline
3) fluoroquinolone

9

mycoplasma structure

pleomorphic

10

dimorphic fungi characteristics and exception

Cold (20C) = mold
heat (37C) = yeast
*coccidoido spherule, not yeast in tissue

11

treatment for systemic mycosis

local infection = fluconazole or itroconazole
systemic infection = amphotericin B

12

systemic mycoses contagious?

no

13

systemic mycoses can form granulomas

ok

14

blastomycosis location

eastern US + central america

15

blastomycosis on pathology

broad-base budding (blasto buds broadly)

16

blastomycosis histology

granulomatous nodules

17

blastomycosis presentation

inflammatory lung disease that can disseminate to skin and bone

18

characteristic coccidoido path

spherules filled with endospores

19

other name for coccidoido arthralgias

desert rheumatism

20

other name for coccidoido erythema nodosum

desert bumps

21

other name for coccidoido

San Joaquin Valley fever

22

tinea presentation

branching septet hyphae on KOH preparation with blue fungal stain

23

tine capitis associations

1) lymphadenopathy
2) alopecia
3) scaling

24

tinea corporis findings..

1) scaling rings (ringworm)
2) central clearing

25

tinea corporis sources

infected cat or dog

26

rash in inguinal area without central clearing think...

tinea cruris

27

tinea unguium

onychomychosis; occurs on nails

28

dermatophytes

microsporum
trichophyton
epidermophyton

29

malassezia organism type

yeast-like fungus

30

malassezia pathohpys

degradation of lipids --> acid production --> damaged to melanocytes --> hypo pigmented patches

31

tinea versicolor treatment

selenium sulfide, topical and/or oral antifungals

32

other name for tinea versicolor

pityriasis versicolor

33

candida form

dimorphic; pseudohyphae and budding yeast at 20C, germ tubes at 37 C

34

cause of diaper rash?

candida

35

treatment options for systemic canddia

1) fluconazole
2) caspofungin
3) amphotericin

36

ABPA findings

bronchiectasis
eosinophilia

37

cryptococcus description

5-10 micrometer with narrow budding. heavily encapsulated.

38

what does latex agglutination test?

polysaccharide capsular antigen

39

classic finding in cryptococcal encephalitis?

soap bubble lesions in brain

40

nucor and rhizupus structure

Irregular, broad, nonseptate hyphae branching at wide angles.

41

RF's for mucor

1) diabetes
2) neutropenic

42

mucor route of infection

Proliferate in blood vessel walls --> penetrate cribriform plate --> enter brain.

43

mucor sequelae

1) rhino cerebral abscesses
2) frontal lobe abscess
3) cavernous sinus thrombosis

44

CXR finding with pneumocystis

Diffuse, bilateral ground-glass opacities.

45

how do you diagnose pneumocystis?

lung biopsy or lavage

46

when do you start prophylaxis with pneumocystis?

below 200

47

prophylaxis for pneumocystis?

dapsone

48

sporothrix description

cigar-snapped budding yeast that grows in branching hyphae with rosettes of conidia

49

term for presentation of sporothrix

ascending lymphangitis