micro - descriptions Flashcards by Anonymous 1

oxidase-positive
gram-negative
bacilli
grows well on highly alkaline media

vibrio cholerae

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Herpes

enveloped
double stranded
DNA

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winter (viruses)

influenza (orthomyxo)
rota (reo)
RSV (paramyxo)

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summer (viruses)

Enteroviruses (Picorno)
- Polio
- Echo
- Coxsacki
Arobo
- West Nile (flavi)

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enveloped
partially double-stranded
circular
DNA
w/ RNA dependent DNA polymerase

hepadnavirues

Hep B

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nonlactose-fermenting
oxidase-negative
motile

salmonella

gram negative

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pyocyanin pigment

psuedomonas

ox pos
gram neg
rod

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MC pathogens –> nosocomial bloodstream infx

Coag neg staph
S. aureus
Enterococci
Candida

(GP > GN)

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Hep A

picorna

ssRNA
nonenv

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Hep B

hepadna

dsDNA***
enveloped

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Hep C

flavi

ssRNA
enveloped

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Hep D

delta

ssRNA
circular

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Hep E

hepe

ssRNA
nonenv

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UTI:
catalase pos
gram pos
cocci

staph sapro

coag neg
novobiocin RESISTANT

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unenveloped
ssRNA
spread fecal-oral
high mortality in preg

Hep E

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gram+ cocci
beta hemolytic
PYR +

(PYR: pyrrolidonyl arylamidase)

Strep pyog (A)

bacitracin sens

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gram+ cocci
beta hemolytic
PYR (-)

Strep agalac (B)

bacitracin resistant); CAMP positive

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gram+ cocci
gamma hemolytic
PYR +

enterococci

grow in bile AND NaCl

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gram+ cocci
gamma hemolytic
PYR (-)

Strep bovis

grow in bile NOT NaCl

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facial pain
headache
nasal eschar
pt w/DKA

mucormycosis

mucor or rhizopus or absidia

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broad ribbon-like nonseptate hyphae w/ right-angle branching

mucor

rhizopus

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grown on:

cysteine-tellurite agar

cornyebacteria

grow as dark black, slightly iridescent

on loffler’s medium - metachromatic phosphate granules (stain with aniline dye like methylene blue)

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gram +
cat +
aerobic/facultatively anaerobic
club-shaped rods

corynebacteria

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HIV pt

pain and itching in perirectal area
intermittant recal bleeding for several mo
single ulcerative mass in anal canal

squamous cell carcinoma of the anus 2/2 HPV infx

16,18,31

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Monospot neg mononucleosis | immunocompetent

CMV

``` GNR non-motile non-lactose fermenting oxidase neg (no gas) H2S negative ```

shigella

GNR lactose non-ferm ox positive

Pseudomonas

GNR lactose non-ferm ox neg H2S +

salmonella | proteus

GNR lactose non-ferm ox neg H2S neg

shigella

GNR lactose ferm fast ferm

kleb ecoli enterobacter

GNR lactose ferm slow ferm

citrobacter | serratia

``` fever pharygitis sandpaper-like rash (that blanches) strawberry tongue (possible circumoral pallor like parvoB19) ```

Scarlet fever - Group A Strep | pyrogenic exotoxins

GNR non lactose ferm ox pos motile

psuedomonas

otitis externa in elderly or diabetic pt

psuedomonas

produce dextrans from sucrose

viridans strep

MCC of endocarditis in IVDU

s. aureus

invade schwann cells hypopigmentation of skin patchy areas of anestesia

mycobacterium leprae

ecthyma gangrenosum

psedudomonas

febrile neutropenia + skin lesions (ulcerated appearance and occasional necrotic centerO

pseudomonas | ecthyma gangrenosum

rubella virus type

toga

rubeola vs rubella

both= maculopapular rash face --> trunk rubella - typically spreads faster and does not darken or coalesce - postauricular and occipital lymphadenopathy very common in rubella

cough coryza conjuctivitis

(+ Koplik spots) measles (rubeola) rash 1-2 days after Koplik

Bacillary angiomatosis

bartonella henselae

Hemolytic Uremic Syndrome

Ecoli O157:H7 (EHEC) Shigella (?)

toxin acts on EF-2 to block protein synth

diptheria | pseudomonas

toxin acts on 60s ribosomal subunit to block protein synth

shigella | EHEC

larva currens

strongyloides | linear streaks on thighs/butt as larva migrate subcu away from perianal region

"stacked brick" intestinal adhesion

rando ecoli species: EAEC - enteroaggregative implicated in perisistent diarrhea in infants in developing countries

E coli that does NOT ferment sorbitol

EHEC | O157:H7

CD21 receptor

EBV (via gp350) CD21= cellular C3d receptor

attaches to erythroid precursor cells via blood group P antigen

Parvo B19

infected mature B lymphocytes proliferate indefinitely but still secrete Igs

EBV

cyroglobinemia

hep c

non enveloped | ssDNA

parvo

erythema infectiosum

parvo B19

Bronchitis/ bronchiolitis (3)

RSV Influenza A Coronavirus

Segmented

(All RNA - BOAR) Bunya Orthomyxo Arena Reo

``` somnolence lethargy oliguria hx -bloody diarrhea BUN up creatinine up fragmented erythrocytes on smear ``` what food/what path

Undercooked beef EHEC (this is HUS)

parvo B19 tropism

erythrocyte precursors | in bone marrow

``` - painless sore on penis 3wks later... - painful inguinal region swelling - draining ulcers, infl skin - mild fever and malaise - cytoplasmic inclusion bodies ```

Chlamydia trachomatis | lymphogranuloma venereum

school of fish

haemophils ducreyi | chancroid

travel to/from Africa + | painless hematuria

schistosomiasis | s. haematobium a/w squamous cell carcinoma of the bladder

periportal pipestem fibrosis

schistosomiasis | s. japonicum and s. mansoni

UTI (hematuria, dysuria) boys daycare

adenovirus | acute hemorrhagic cystitis

form "serpintine" or "medusa head" colonies

B. anthracis gram pos rod

hot tub folliculitis

pseudomonas

otherwise healthy kid w/osteomyelitis

staph aureus

micro - descriptions Flashcards

(67 cards)