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Micro Exam 3 > GI > Flashcards

GI Flashcards

1
Q

P! enlargement of parotid salivary glands (parotitis), testicular swelling in males (orchitis)
Rubulavirus
Vaccine has almost erradicated in industrialized world

A

Mumps

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2
Q

Viral Gastroenteritis
fecal-oral
NO VOMITTING

A

Astrovirus

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3
Q

Mild cases asymptomatic, m. pain and weakness, facial swelling around eye
Trichinella spiralis
Undercooked pork
aka Trichinellosis, NOT common in US`

A

Trichinosis

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4
Q

Viral Gastroenteritis
fecal-oral
MC cause of infantile gastroenteritis

A

Rotavirus

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5
Q

Watery diarrhea, cramps, N/V
Escherichia coli 0157:H7
Fecal-oral undercooked beef or unpasteurized milk/fruit juice
MCly causes a GI infection (of everything it could cause, it likes this best)

A

Traveler’s Diarrhea (bacterial gastroenteritis)

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6
Q

Tapeworm Infestation Organsim(s):
Most are asymptomatic, weight loss
Undercooked contaminated beef or pork
Beef or Pork tapeworm

A 
Taenia saginata (beef)
Taenia solium (pork)
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7
Q

Abdominal cramps and watery diarrhea, NO fever nor N/V
Clostridium perfringens
Contaminated meat
<24 hours

A

Clostridial food poisoning

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8
Q

Viral Gastroenteritis
Fecal oral, esp. oysters
90% of viral gastroenteritis; #1 cause of foodborne illness in the US, emerging

A

Norovirus (Calicivirus)

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9
Q

Jaundice, plays a role in triggering liver cancer
HDV
Bodily fluids, contaminated needles
Requires HBV co-infections so called a satellite virus

A

Hepatitis D

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10
Q

Jaundice, fatal in 20% of pregnant women
HEV
Fecal-oral, seafood, pigs, cows, unclean water
aka Enteric hepatitis

A

Hepatitis E

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11
Q

Tapeworm Infestation Organsim(s):
80% asymptomatic, weight loss, megaloblastic anemia
Raw or undercooked fish
aka diphyllobothriasis

A

Diphyllobothrium lactum

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12
Q

Most asymptomatic
Ascariasis lumbricoides
Eggs are ingested in water or on veggies
MC nematode infection of humans worldwide, and largest to infect humans

A

Ascariasis

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13
Q

Chronic infection with few if any symptoms
HCV
Needles, Organ transplants, transfusions, sexual activity
Accounts for most non-A, non-B hep. in the US

A

Hepatitis C

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14
Q

Most asymptomatic, Jaundice, associated with liver cancer
HBV
Infected needles, intercourse, babies during birth
Co-infection with Hep D. inc. risk of perma liver damage

A

Hepatitis B

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15
Q

Tapeworm Infestation Organsim(s):
Hydatid cysts can form in any organ, but primarily occur in the liver
food/water contaminated by dog feces
canine tapeworm

A

Echinococcus granulosus

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16
Q

Cold sores
HHV-1 sometimes 2
Close contact with active lesions
Latent in trigeminal ganglia

A

Oral herpes

17
Q

Jaudice
HAV
fecal-oral
aka Infectious Hepatitis, resistant to common household disinfectants

A

Hepatitis A

18
Q

Mild food poisoning
Bacillus cereus
Rice dishes cooked and held at warm temp for hours
aka Fried Rice syndrome, only a few cases a year

A

Bacillus cereus food poisoning

19
Q

“Rotten egg” smelling stools
Giardia intestinalis (previously G. lamblia)
aka Beaver Fever; common waterborne GI disease in US

A

Giardiasis

20
Q

Inflam of intestinal tract, sometimes mimics appendicitis
Yersinia enterocolitica
Contaminated pork
Tends to prefer kids

A

Yersinia food poisoning

21
Q

90% of amebiasis cases are what kind

A

Luminal amebiasis

22
Q

Severe diarrhea, HA, m. p!, severe fluid and weight loss
Cryptosporidium parvum
Fecal oral via contaminated water
aka Cyptosporidium enteritis

A

Cryptosporidiosis

23
Q

Bloody and frequent diarrhea (10x/day for 7-10 days)
Campylobacter jejuni
Contaiminated Poultry MC
MC cause of bacterial gastroenteritis in the US

A

Campylobacter Diarrhea (bacterial gastroenteritis)

24
Q

Intense perianal itching (esp at night) 1/3 of cases asymptomatic
Enterobius vermicularis
Females deposit eggs in perianal region at night, easily spread on bedding, from person to person after scratching
MC parasitic worm in US, common in children

A

Pinworm infestations

25
Q

Cramps, watery diarrhea, myalgia, fever, AIDS patients more severe
Cyclospora cayetanensis
Outbreaks have been linked to raspberries

A

Cyclosporiasis

26
Q

What organism causes amebiasis

A

Entamoeba histolytica

27
Q

Abdominal cramps, fever, diarrhea, purulent bloody stools
Shigella sonnei, S. flexneri, S. dysenteriae, S. boydii
Fecal-oral, contaminated hands/cold foods and salads
aka Bacillary Dysentery; Shiga toxin; Sonnei 2/3, Flexneri 1/3

A

Shigellosis (bacterial gastroenteritis)

28
Q 
"Rice-water stool"
Vibrio Cholerae
Fecal-Oral via food/water
Only Vibrio in freshwater
MC Vibrio to infect humans
A

Cholera (bacterial gastroenteritis)

29
Q

N/V, diarrhea, cramping
Staph. aureus
Contaminated food

A

Staphylococcal food poisoning

30
Q

Ground itch at site of larvae penetration, chronic anemia, iron, and protein deficiencies
Necator americanus; Ancylostoma duodenale
Usually penetrate skin of foot
2nd MC nematode affecting humans worldwide

A

Hookworm infections

31
Q 
Abdominal p!
Helicobacter pylori
Fecal-oral transmission
P! relieved by food-duodenal
P! exacerbated by food-gastric
A

Peptic Ulcer

32
Q

After approx 1 year, worm forms a blister on skin, generally on the foot which breaks open
Dracunculus medinesis
Water infected with copepods
aka Guinea worm disease, traditional tx involves winding worm out on a stick

A

Dracunculiasis

33
Q

Nonbloody diarrhea, N/V myalgia
Salmonella enterica enteritidis, Salmonella enterica typhimurium
Contaminated eggs, poultry, milk

A

Salmonellosis: Salmonella food poisoning (acute bacterial gastroenteritis)

34
Q

What kind of amebiasis causes necrotic lesions in various organs

A

Invasive extraintestinal amebiasis

35
Q

What kind of amebiasis causes sever hiarrhea, colitis, appendicitis

A

Invasive amebic dysentery

36
Q

Inflam of colon with formation of pseudo-membranes
Clostridium difficile
Extremely common opportunist after taking antimicrobials, Common nosocomial infection
Life threatening peritonitis from massive internal infection by fecal bacteria

A

Pseudomembranous colitis (bacterial gastroenteritis)

37
Q

Fever, HA, m. p!, bacteremia can lead to peritonitis
Salmonella enterica typhi, S. e. paratyphi
Contaminated food/water
Typhoid Mary

A

Salmonellosis: Typhoid Fever (enteric fever)

38
Q

What kind of amebiasis is asymptomatic

A

Luminal amebiasis

Micro Exam 3 (3 decks)

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