Download - PRACTICAL ON BLOOD PARASITES
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PRACTICAL ON BLOOD PARASITES
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The two methods common in use :
1: Light microscopy 2: Rapid diagnostic tests (RDTs).
Common methods for parasitological diagnosis of malaria
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Laboratory diagnosis of malaria
Rapid diagnostic tests detect malaria antigens
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RDT procedure
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RDT procedure
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RDT procedure
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Laboratory diagnosis of malariaLight microscopy:1: Preparing blood film
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Light microscopy:1: Preparing blood filmLaboratory diagnosis of malaria
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Light microscopy: Thick and thin films
Laboratory diagnosis of malaria
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Plasmodium falciparum (trophozoite stage in thick
smear)
CCMOVBD
Plasmodium falciparum (trophozoite stage in thin smear)
Laboratory diagnosis of malaria
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16 Morphology of Malaria
3. Gametocyte
The Malaria Parasite
Three developmental
stages seen in blood
films:
1. Trophozoite
2. Schizont
CCMOVBD CCMOVBD
Trophozoites
CCMOVBD
GametocyteSchizont
CCMOVBD
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17 Morphology of Malaria
Species of malaria is identified by its chracteristic microscopic appearance:
CCMOVBD Plasmodium vivax
CCMOVBD Plasmodium malariae Malaria Tutorials, Wellcome Trust Plasmodium ovale
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18 Morphology of Malaria
Plasmodium falciparum (trophozoite stage in thin smear)
CCMOVBD
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19 Morphology of Malaria
CCMOVBD
Plasmodium falciparum (trophozoite stage in thick smear)
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20 Morphology of Malaria
Plasmodium falciparum (characteristic banana-shaped or crescent –
shaped gametocyte stage in thin smear)
CCMOVBD
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A 25 year-old male from India, who came 3 months ago was admitted in KKUH with a history of severe anaemia and intermittent high grade fever for the last two months not responding to antibiotics.WHAT IS THE DIAGNOSIS?
Diagnosis: malaria or Plasmodium vivax
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A businessman who makes frequent trips to Thailand , presents with intermittent fever .WHAT IS THE DIAGNOSIS?
Diagnosis: malaria or Plasmodium vivax
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A student in KSU who returned three weeks from vacation in Africa , he developed intermittent fever last week and lost consciousness a short time ago.WHAT IS THE DIAGNOSIS?
Diagnosis: malaria or Plasmodium falciparum
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The patient was then treated with schizontocidal antimalarial drugs, a follow-up blood film is shown .ARE THERE ANY PARASITES? WHAT STAGE ?
Plasmodium flaciparum , gametocyte stage
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A 7 year old child presented with anemia , hepatospenomegaly and fever .Not responding to antimalarials and antibiotics . Bone marrow smear is shown ARE THERE ANY PARASITES? WHAT STAGE ?
Leishmania , amastigote stage
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Bone marrow aspiration
Bone marrow amastigotes