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Micro > Parasitology > Flashcards

Parasitology Flashcards

1
Q

Common intestinal parasites in saudi arabia

A

Entamoeba histolytica
Giardia lambila
Ascaris
Schistosoma manoni

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2
Q

Common parasitic skin infection in saudi arabia

A

Leishmania major
leishmania tropica

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3
Q

Categorization of parasites according to affecting tissue

A

Blood and tissue protoza
intestinal and vaginal protozoa
interstinal helminths
Blood and tissute helminths

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4
Q

Parasite of rbc (protozoa)

A

Plasmodium
Babesia

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5
Q

Plasmodium (PROTOZOA) which can infect rbc . what is the mode of entery and symptoms

A

MOE: mosquito vector (f) Anopheles . Symptoms develop after 8-30 days

S:
-fever , chill (Malarrial paroxysm)
-Lysis of Rbc and cause anemia
-Surge IL-1 and GDPI.

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6
Q

what are the diffrent types of plasmodium

A

p.falciparum
p.knowlesi
p.vivax
p.ovale
p.malariae

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7
Q

Sypmptos of , P.Falc P.know P.vivax

A

all fever - chill

P.falc : Nausea and vomationg , diarrhea progressing to tertian (every 2 days a fever ) with filminating diseases (malignant tertian)

P.know:Headache , rigors (sudden feeling of cold ) ,abdominal pain , cough (severe symptoms in 7 % of cases ; respiratory and hepatorenal failure)

P.vivax : (benign tertian malaria ) - life threatiening syndromes similar to p.falc may be seen . A LIVER STAGE MAY CAUSE RELAPSES AND RECRUDESCENSCES

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8
Q

SYMPTOMS OF P.ovale - P.malariae

A

P.ovale ; cause (benign tertian malaria ) like p vivax with both relapeses and recuarance

P.malariae : Has a long incubation period , fever in intreval 3 to 4 days (quartan or malarial malaria )

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9
Q

Lab diagnosis of Parasite of rbc, what stain , what we see in the microscopic picture of P.falc , P.vivax

A

Giemsa - stain (thin for species - thick for if it is there )

P.falc :Multipe ring form - applique (see page 11)
P.vivax :Ring withdouble chromatin dots , contain schuffiner dots

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10
Q

Babesia species (PROTOZOA) which can infect rbc . what is the mode of entery and symptoms

A

MOA:Tick vector

Symptoms (Babesiosis) : -Fever - chills - Muscle aches !!! - dark urine . diffcult to diagnose

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11
Q

Babesia lab ( what stain) and and what is the dignosing tests AND THE microscopic feature

A

Giemsa stain , resmable Plasmodium

DT:Antibodes based test ELISA

PCR

MF:Multibe ring like p.falc

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12
Q

What are the parasite of tissue

A

Toxoplasma dondii
Leismanina

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13
Q

Entery of Toxoplasma gondii (tissue )

A

Entery :
uncoocked meet containg cysts
ingesting oocyte found in feces of cats \

Imp to know : cats are required for lifecycle of T.gondi (no cats no toxo )

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14
Q

symptoms of toxoplasma 6

A

Aids patient (mononuleosis - like syndrome , congential infection , infecton of heart and brand (encaplatis)
Body aches
headach
swollen lymh nodes!!!!!!!!
fatigue

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15
Q

Lab of Toxoplasma. stain used ? what is the best test used for -Immunocomparmised - not immunecompramised . what the microsopic feature

A

IgM for normal people - MRI for IC

Microscopic: lostf of cyst which can become actiive in IC ( Like those with immuncesupression drugs who got a trasnplant surgery )

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16
Q

Leishmania (tissue protoza) Entery and reserviors

A

Phelbotomine sand flies vector

reserviors are rodents + dogs

17
Q

Leishmania (tissue protoza) symtomps

A

Cutanous leishamnaiasis (L.tropica)
Visceral leishmaniasis (L.donovani)
Fever , weight loss , skin lessions

Lession in :
Liver (hepatomegaly )
spleen (spleeomegaly )
bone marrow (anemia , leukopenia and thrombocytopenia )

18
Q

Leishmania (tissue protoza) lab dignosis

A

Biopsy for (visceral leishmaniasis )
PCR
detection of parasitic Ag in urine

19
Q

what are the Intestinal protoza

A

Entamoeba histolytica - giardia lambila

20
Q

Entamoeba histolytica (Intestinal protoza ) sympyoms and transmation

A

Fecal - oral route

Dysenteric stoll (watery&bloody with mucus ) and colonic ulcer

lower abdoman discormfort , flatuelence & tenesmus
Weight loss , fatigue , Amebic abscess of the liver

21
Q

Lab diagnosis for Entamoeba histolytica (Intestinal protoza )

A

Trophozoite in stool
stool imunnoyassy (E,histolyic Ag)
Serologic testing esp for the abscess

22
Q

symptoms of giardia lamblia (Intestinal protoza ) and trasnmation

A

Fecoal-oral
Persistent diarrhea !!!!!
Malabsorption —-> greast and foul-smelling non bloody diarrhea!!!!!!!!!!!
weight loss + feficiency of fat vitamins

23
Q

Lab diagnoisis of giardia lamblia (Intestinal protoza )

A

present in stool
dedtion of cyst
ag detection assy in stool

24
Q

name one Intestinal nematodes and entery

A

ascaris lumbricoides - page 23

25
Q

Symptoms of Ascaris lumbricoides

A

The damage is primarly due to larval migration
Malnutrition in kids
ascaris penumonia ( Eosinphilia)
Worm cause obstruction + perfooration and occlusion of appendix (cause appendicitis)

26
Q

Lab diagnonis of Ascaris lumbricoides

A

Eosinphilia
occult blood in stool
larva in sputum
eggs in stool

27
Q

Name one intersinal trematodes`

A

Schistosoma

28
Q

How schistosoma enter the body

A

Snail releases cercariae into fresh water the penetrates intact skin

29
Q

Types of schistosoma and what do they infect

A

S.mansoni and S.japonicum enter circulation and develop in the mesenteric venuleus and later the reach intestine causeing (intestincal schistosomiasi)

S.haematobium in bladder vein later reaching the bladder causing ( vesicular schistosomiasi)

30
Q

Schistosoma symptoms

A

Skin rash - abdominal pain + diarhhea + hepatomegaly and eosinophilia and leukocytosis (katayama syndrome ) ‘sensitivty to egg - acute phase’

S.man and S.jap cause hepatospenic and neurological damage

S.hae cause hematouria dysuria bladder scarring and uropathy

31
Q

lab diagnosis of schistosoma

A

urine and feces eggs

eosinophilia

Micro (8 decks)

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