Blood

• Systemic or blood-borne parasitic infections are diagnosed by demonstrating the diagnostic stage(s) of the responsible parasite(s) in which type of specimen?

  • Urine
  • Fecal
  • Sputum
  • Blood

  = Blood
• Blood specimens may contain which of the following parasites?

  • Enterobius vermicularis
  • Plasmodium
  • Trichomonas vaginalis
  •  Ascaris lumbricoides

  = Plasmodium
• What is essential for obtaining adequate smears for examination from blood specimens?

  • Using anticoagulated blood
  • Collecting capillary blood
  • Collecting venipuncture blood
  • Proper collection and handling


  = Proper collection and handling
• Blood smears for parasite examination can be prepared from which type of blood collection?

  = Fresh whole blood without anticoagulant = Venipuncture collection with anticoagulant
• What is important to ensure during the collection of blood specimens for parasite study?

  = Aseptic technique
• Blood specimens for parasite study should be collected in tubes containing which substance?

  = Ethylenediaminetetraacetic acid (EDTA)
• Which type of blood smear provides the best view of malarial parasites for species identification?

  = Thin smear
• Which stain is the preferred stain for species identification of blood parasites?

  = Giemsa stain
• The Knott technique is used to concentrate blood specimens suspected of containing low numbers of which type of parasites?

  = Microfilariae
• Buffy coat slides for examination can be prepared by centrifuging whole blood to extract which component?

  = White blood cells
• What is the recommended time frame for preparing blood smears for malaria examination after collection?

  = Within 1 hour
• Which stain is commonly used for the detection of blood parasites, such as Leishmania and Trypanosoma?

  = Giemsa stain
• What is the purpose of preparing thick smears in blood parasite examination?

  = Detection of low parasite numbers
• Which staining technique is commonly used for the identification of malaria parasites?

  = Giemsa stain