exam 10 Flashcards

(73 cards)

1
Q

Malaria vaccine targets what

A

sporozoites

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2
Q

explain malaria life cycle

A
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3
Q

Babesiosis vector compared to malaria

A

barbesiosis vector is dear tick and in new england
has cross line rbc that looks like star
it is simular to falciparum
lyme dz
co infections

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4
Q

what is duffy Ag

A

antigen for vivax malaria that aftricans have. It increases resistance to malaria

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5
Q

what causes relapse of malaria

A

liver hypnozoites

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6
Q

Falciparum vs Vivax which one for the following
- black water
-rarely fatel
-no relapses
-Lysed rbc stuck to capillary limes
-cerebal malari
-duffy ag

A
  • black water - falcip.
    -rarely fatel -vivax
    -no relapses - falcip
    -Lysed rbc stuck to capillary limes - fal.
    -cerebal malari-falc.
    -duffy ag - vivax
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7
Q

what are maurers dots

A

found in rbc with falciprum malaria

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8
Q

what is the major pathophysiologic effect of rickettsia

A

increased microvascular permeability

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9
Q

R rickettsia
what dz:
dz sx:
reservoirs:
vector:
complication of dz:
Death?

A

Dz: rocky mtn spotted fever
Dz sx: rash on extremity first then
spread to trunk fever and
headache
CENTRIPETAL SPREAD

reseroirs: white foot deer mouse
Vector:
-american dog tick
-brown dog tick
-rocky mtn wood tick
Complication: myocarditis
Death? Yes

it is most common ricketsiosis in usa

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10
Q

R akari
what dz:
dz sx:
reservoirs:
vector:
Death?

A

what dz: Ricketsial pox
dz sx:red papule at site> cesicular
>eschar. then symptoms
similar to rocky mountain fever
reservoirs: house mouse
vector: house mouse mite
complication of dz:
Death? no, no tx needed

SELF LIMITED

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11
Q

What dz and bacteria causes centripetal spread of rash

A

R. rickettsi

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12
Q

R prowazekii
what dz:
dz sx:
reservoirs:
vector:
Death?

A

R prowazekii
what dz: Louse Typhus epidemic
1. Brill Zinnsner
-recurrent
- less severe and rarely fatal
2. sylvatic typhus
- small amt of cases
- no fatality
- vector: squirrel flea feces
-reservoir: Southern flying
squirrel

dz sx: HA fever centrifugal rash (rash trunk to limbs)
reservoirs: human
vector: louse
Death? yes so tx early to reduce risk

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13
Q

which ricketisa’s
mode is poop:
has centripetal spread of rash:
has cetrifugal spread of rash:
only in western hemisphere:
does not need tx:

A

which ricketisa’s

mode is poop:
R. Prowazekii
R. Typhi

has centripetal spread of rash:
R. Reckessii
has cetrifugal spread of rash:
R. Prowazekii
only in western hemisphere:
R. Reckessii
Does not need tx: R. Akari

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14
Q

R. Typhi
what dz:
dz sx:
reservoirs:
vector:
Death?

A

what dz: murine endemic typhus
dz sx: same as typhus tachypenia centrifugal spread
reservoirs: Opossums
vector: flea —- flea poop
Death? rare by 1 %

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15
Q

Reckettsiaceae
Gram: - or +
Tx:
Grow where:

Anaplasmataceae
Gram: - or +
Tx:
Grow where:

A

Reckettsiaceae
Gram: -
Tx: doxy
Grow where: cytoplasm or nucleus

Anaplasmataceae
Gram: -
Tx: doxy
grow: morulae membran bound structure

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16
Q

Reckettsiaceae or Anaplasmataceae

pleomorphic cocobacilli
escape phagosome
grow in wbc
necrotizing vasculitits

A

pleomorphic cocobacilli - both
escape phagosome - reck
grow in wbc - anaplasmat
necrotizing vasculitits - ricke

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17
Q

what is morulae and what species grows here

A

anaplasmataceae

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18
Q

E. Chaffeensis
what dz:
dz sx:
reservoirs:
vector:
Death?
Reckettsiaceae or Anaplasmataceae

A

E. Chaffeensis
what dz: human monocytic
ehrlichiosis HME
dz sx: non specific feaver headache
reservoirs: white tailed deer
vector: lone star tick
Death? low mortality rate
ANA

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19
Q

A. Phagocytophilum
what dz:
dz sx:
reservoirs:
vector:
Death?

A

what dz: human granulocytic anaplasmoisis HGA
dz sx: respiratory distrss
reservoirs: wild rodents
vector: black legged tick
Death? low

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20
Q

whats an exanthem

A

widespread rash usually on children

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21
Q

what are the 3 c’s and what dz is it linked to

A

Measles rubeola

coryza
cough
conjunctivitis

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22
Q

rubeola or rubella

koplik’s spots -
dx with serology -
infection in older children mild and inapparent -

A

koplik’s spots - buccal spots rubeola
dx with serology - rubeola
infection in older children mild and inapparent - rubella

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23
Q

what is congenital rubella syndrome CRS

A

infection in early pregnancy
heart problems
cataracts and glc
hearing loss

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24
Q

oral HSV %
genital Herpes %

tx

A

oral HSV 90%
genital Herpes 90%

Tx: acyclovir

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25
what is VSV tx
varicella zoster virus or chicken pox tx acyclovir
26
why is asprin not recommended for VSV can you take after vaccine?
reyes syndrom hepatitis encephalitis risk dont take with vaccine
27
dz underappreciated risk - contact with small children
CMV
28
percent of people past the age of 85 getting shingles \ can they pass it to someone else
50% yes they can pass it to nieve pt
29
vaccines for what mmr varivax shringrix
mmr - measles varivax- chicken pocks shringrix - shingles
30
what dz shows maculopapular rash? what other sx? how to tx?
what dz shows maculopapular rash? parvo what other sx? CT issues like arthritis arthralgia sometimes with no concurrrent sx how to tx? NSAID
31
Borrelia and leptospira are part of phylen
spirochaetes
32
what is the primary agent of lym dz in n america what is the primary agent of soft tick relapsing fever in N america primary agent for louse borne relapsing fever which is not zoonotic
Lyme _ B.Burgdorferi Soft tick relapsing fever _B. Hermsii Louse bourn relapse _ B. Recurrentis ***not zoonotic***
33
B. Burgdorfi resevoir - vector - sx - tx-
resevoir - rodent vector - black legged tick sx - erythema migrans (bulls eye rash) tx- doxy
34
when are lab test needed for B. Burgdorfi
early disseminated and late lyme dz IF and only If .... signs and sx there hx of tick ELISA 1 postive then proceed with elisa 2
35
B. Hermsii reservoir : vector : tx: dz:
B. Hermsii reservoir : ground squirrel vector : soft tick or ornithodorus hermsi tx: tetracyclin dz: soft tick relapsing fever
36
what pathogen causes infectious mononucleosis IM HHV4
EBV
37
B. Recurrentis reservoir : vector : tx: dz:
B. Recurrentis reservoir :humans vector : lous tx: tetracycline dz: louse borne relapse
38
Hermsi or recurrentis singel dose for tx high moratility clean close prevention west of missipi north america distribution
singel dose for tx - recu high moratility - recu clean close prevention - recur west of missipi - hermsi north america.- both
39
Orchitis in men and oophoritis in women is compliation of what dz
mumps
40
how to dx hermsi or recurrentis for recurrent fever
Elisa
41
2 spirochetes
borellia or leptospira interogens
42
what is jarisch-herheimer
complication of borellia causing relapsing fever (80% Louse born relapsing fever) or leptospirosis after given antibiotis spirochetes die and release ag casuing feer cills tachy cardia hypotension
43
when you thin Borellia think zoonotic spirochete
2 fever and lyme dz leptospira interrogans
44
what pathogen -is shed in the urine -spread by lakes rivers and domestic live stock
leptospira interrogeans it is zoonotic
45
most common opportunistic virus for HIV
CMV
46
what is the major cause of morbitity and death of HIV and transplant pt
Cytomegalovirus (CMV)
47
Leptospirosis stages of dz
1: HA fever chills if it doesnt resolve go to 2 part 2: menigitis renal liver failure conjunctivitis
48
what is owl eye and what dz causes
Charecteristic CPE with massive cell enlargment - Cytomegalovirus
49
remember most VFH ( viral hemorrhagic fever ) is zoonotic what are its resevior
animal or arthropods
50
what is a common early sx of VHF -what important info for dx -tx: -prevention: -virus agent
what is a common early sx of VHF * rash can lead to organ failure -what important info for dx *travel hx -tx: *supportive care -prevention: *isolation -viral agent *ebola
51
HIV has higher titer viremia @ ____ and again when ______ In terms of infection risk highest risk elevated risk
has higher titer viremia @ 3- 9 weeks and again when it turns into aids most infections at early infection before Ab limit virus In terms of infection risk highest risk - first 5 mo ** and when HIV test is still negative elevated risk - 15 mo before death
52
how do they test for HIV in blood donations
PCR checks for viral Ag
53
what test established latency in oropharynx and wbc
EBV
54
what dz causes splenomegaly or ruptur
ebv
55
EBV Dx -
heterophile antibodies (they are transient) monospot test agglutination of horse RBS younger may not have + monospot test
56
CMV significant for who
significan in immunosupressed pt and congenital infection most are subclinical primary dz in compromised host s worst situation
57
what dz if patient has these results Heterophile ( - ) herterophile (+) IgM serology owl eye cell
Heterophile ( - ) : CMV herterophile (+) : EBV IgM serology - CMV owl eye cell - CMV
58
CMV pt are usuall (older/younger) than infectious mono
older
59
Mumps is infection of what complication
salivary glands causing pain swelling and fever
60
what is the infective stage of Trypan. Brucei leishmania spp
trypan tripomastigote leishmani spp - promostogote
61
what do kinetoplast help
dx leishmania in lab
62
Trypanosoma ruicei dz : vector: infective stage : cool feature: life cycle:
Trypanosoma ruicei dz : african sleeping sickness vector: tsetse fly infective stage :tripomastigote cool featureL evades immune system with variant surface glycoproteins VSG
63
name two subspecies of T. Brucei which one is easily seen which one is slow but chronic which one is fast but acute which one has primary resecior of humans ... animal heart rythme changes and seizures
1. Gambiense (west african ) -slow chronic -human - heart changes - seizures 2. Rhodesiense ( east africa) -easily seen -rapid but acute -animals
64
Trypanosoma Cruzi Dz Vector Life cycle dx acute dx chronic sx acute
Trypanosoma Cruzi Dz - chagas Vector - tiatomine kissing but Life cycle - dx with blood smear dxacute Trypomsatigote dx chronic amasigote sx stages acute chagoma where they enter skin romana signs swelling
65
leishmania vector: infectious form: life cycle: types:
leishmania vector: sandfly infectious form: promatigote life cycle: types: 1. cutaneous 2. Mucocutaneous 3. visceral
66
most common form of leishmaniasis when does it develope sx
cutaneous weeks to months skin lesions
67
what form of leishmaniasis occurs years to decades and what sx
mucocutaneous nasal sx
68
leismania can affect what internal organ
spleen
69
snails are the first intermediate hose of what
trematotodes flukes and shitosome
70
___vector____ Lymphatic filariasis: schitosome trematodes: ___tx ___ Lymphatic filariasis: schitosome trematodes: __site ___ Lymphatic filariasis: schitosome trematodes: __epidem___ Lymphatic filariasis: schitosome trematodes: _____ sx_____ Lymphatic filariasis: schitosome trematodes: ____ which one has feces and urine mode?___
___vector____ Lymphatic filariasis: flies mosquitos and domestic animals schitosome trematodes: snail ___tx ___ Lymphatic filariasis:: DEC diethylcarbamazine schitosome trematodes: praziquntel __site ___ Lymphatic filariasis: subcut skin eye schitosome trematodes: urinary(haematobium) mesentary (mansoni) __epidem___ Lymphatic filariasis: sub tropics and tropics schitosome trematodes:sub tropics and tropic FRESH WATER _____ sx_____ Lymphatic filariasis: edema elephantitis chyluria (lymph in blood) schitosome trematodes: intestine pain increas in liver size or blood in urine (hematuria) ____ which one has feces and urine mode?___. Shchistosomiasis
71
what form of pathogen exists snail
cercarial larvae
72
which worm has compication of brain damage and lung
schitosome trematodes
73
african eye worm
loiasis loa loasub conj migration tz with DEC