Harr Parasitology Practice Test

These questions are part of the practice quiz. Start practicing

• What are potential problems associated with using EDTA anticoagulant and holding the blood too long?
• Toxoplasma gondii is characterized by which feature?
• What are the common symptoms of a Giardia infection?
• Which parasite can be transmitted through cat feces?
• What is the definitive host for Toxoplasma gondii?
• What type of life cycle does Entamoeba histolytica have?
• Oocysts of Cryptosporidium spp. are detected in stool specimens using which stain?
• What is the most likely specimen and organism for a patient with eosinophilia and enlarged spermatic cord after returning from India?
• What is the primary method of diagnosing malaria?
• What is an incorrect match between method and its objective?
• Which drug is commonly used to treat giardiasis?
• Charcot-Leyden crystals in stool are associated with the breakdown products of which cells?
• Which organism is known for its "fruiting bodies" in the life cycle of fungi?
• What are the typical consequences of heavy Necator americanus infection?
• What type of organism is Trypanosoma brucei?
• Which organisms should be considered in a nursery school outbreak of diarrhea?
• What does the term "hyperinfection" refer to in Strongyloides stercoralis?
• What is the function of cuticle in nematodes?
• Which parasite infects the intestinal lining and causes enteritis?
• What is the common diagnostic approach for schistosomiasis?
• What species is responsible for causing amebic dysentery?
• Which infection may require sputum examination for diagnosis?
• Which organism is responsible for causing malaria?
• How does Toxoplasma gondii typically infect humans?
• What is the primary diagnostic method for detecting Giardia lamblia in stool?
• What is the clinical significance of Babesia microti?
• Which motile amoebae are most likely responsible for meningitis in a child who swam in a warm-water spring?
• What is the typical host for Echinococcus granulosus?
• What is a common symptom of lymphatic filariasis?
• What is the vector for the transmission of Dirofilaria immitis, causing heartworm in dogs?
• Which parasitic infection can lead to a "winter's itch"?
• Which tissue cysts result from Toxoplasma gondii infection?
• What is the main complication associated with amoebic liver abscess?
• The formalin-ether (ethyl acetate) concentration procedure is used to demonstrate what?
• How is Leishmania transmitted to humans?
• What condition results from the accidental ingestion of eggs where humans are the intermediate host?
• What organism causes river blindness?
• Cultures of parasites differ from bacterial cultures in that they require what for quality control?
• Which parasite has a "coccyx" or "tail-like" structure in the egg?
• What is the main vector for Lyme disease?
• Which of the following parasites is most commonly associated with contaminated water?
• Which nematode is known as the "whipworm"?
• Which parasitic organism is most often transmitted sexually?
• What tests are used to confirm a diagnosis of filariasis?
• What would you expect to see upon examination of stool material for Cystoisospora belli?
• Which lifecycle stage of Giardia lamblia is typically infective for humans?
• Which organism is associated with both gastrointestinal and respiratory infection?
• What is the primary difference between modified acid-fast stains for Cystoisospora belli oocysts and standard acid-fast stains used for AFB?
• Which characteristic is typical of an Entamoeba histolytica trophozoite?
• What diagnostic technique is used for identifying Strongyloides stercoralis?
• What class of helminths includes organisms such as hookworms and pinworms?
• Which is the most common intestinal helminthic infection worldwide?
• Which organism is incorrectly matched with its characteristic?
• Which class of parasites does Trichuris trichiura belong to?
• In which part of the human body do adult tapeworms typically reside?
• What is the principal method of preventing malaria transmission?
• What is the main treatment option for ascariasis?
• What is a common symptom of giardiasis?
• Which test is commonly used to identify helminths in stool?
• Which parasite resides in the liver and is responsible for hydatid cysts?
• Which of the following parasites is associated with a significant public health concern due to its prevalence in tropical regions?
• Which species is primarily tested for using the miracidial hatching test?
• What is the common reservoir host for Trichinella spiralis?
• Which condition is associated with Echinococcus granulosus infection?
• What is the major symptom of schistosomiasis?
• Which organism is known for causing a zoonotic form of leishmaniasis?
• How long can red blood cell stages of malaria live in the host?
• Which parasite is associated with eosinophilic meningoencephalitis?
• What is the diagnostic stage of Strongyloides stercoralis?
• Which test is essential for diagnosing malaria?
• The early ring stages of Plasmodium knowlesi are similar to which other species?
• Which two helminth eggs are known to resemble each other?
• What condition is caused by Ancylostoma duodenale?
• What is the primary treatment for Cryptosporidiosis?
• What is the primary symptom of schistosomiasis?
• Which demographic is most affected by Chagas disease?
• Infections with microsporidia primarily originate in which part of the body?
• What kind of relationship do parasites typically have with their hosts?
• What form of Entamoeba histolytica is found in the human intestine?
• How can one prevent schistosomiasis in endemic areas?
• What is the primary diagnostic test for identifying amoebic dysentery?
• Which microfilariae are usually not found circulating in the peripheral blood?
• Which parasite causes the disease known as "American trypanosomiasis"?
• Which disease is associated with the "kissing bug"?
• What is the effect of chlorination on Cryptosporidium oocysts?
• Which specimen is least likely to provide recovery of Trichomonas vaginalis?
• What is the incorrect match between disease and symptoms?
• Which nematode is commonly referred to as the "pinworm"?
• How is Giardiasis primarily transmitted?
• The miracidial hatching test is used to demonstrate the viability of eggs of which species?
• What disease is associated with Trypanosoma brucei?
• What is the best technique to identify Dientamoeba fragilis in stool?
• What organ is primarily affected by Fasciola hepatica?
• Massive hemolysis, blackwater fever, and central nervous system involvement are most common with which species?
• Which of the following is a characteristic of cestodes (tapeworms)?
• What is the preferred treatment for schistosomiasis?
• A transplant patient with diarrhea is likely suffering from which disease?
• What condition is caused by the ingestion of contaminated food or water containing Entamoeba histolytica?
• How is hookworm primarily transmitted?
• In which part of the body do adult Schistosoma worms reside?
• What is the appearance of eggs of the common roundworm?
• How do humans acquire infections with Diphyllobothrium latum adult worms?
• In infections with Taenia solium, which role can humans serve?
• What is the common name for the transmission process of malaria?
• What is the diagnostic technique used to detect the presence of microfilariae in blood?
• What is a characteristic of the rhabditiform larvae of Strongyloides stercoralis?
• What type of parasites are the flukes?
• What is the primary treatment approach for most helminth infections?
• Which of the following is not a characteristic of nematodes?
• Which disease does Cryptosporidium parvum primarily cause?
• A patient with sudden cardiac irregularities and amastigotes in myocardium most likely suffered from?
• What type of clinical condition is schistosomiasis?
• What is the preferred diagnostic test for malaria?
• Which of the following is associated with the presence of eosinophils in infections?
• Which method is primarily used for the detection of organism motility?
• Fecal immunoassays are commonly used to diagnose infections with which organisms?
• How is Enterobius vermicularis commonly transmitted?
• How can humans contract Strongyloides stercoralis?
• What is a common treatment for malaria infection?
• What disease can be caused by the protozoan Leptospira?
• Which organism is NOT typically associated with gastrointestinal disease?
• What is the infective stage of Ascaris lumbricoides?
• What is the main symptom of schistosomiasis?
• What is the primary mode of transmission for Plasmodium spp.?
• Which organism is primarily responsible for causing African sleeping sickness?
• Which organisms should be considered in a waterborne outbreak of diarrheal disease?
• Which type of tests can identify Cryptosporidium in stool samples?
• What are the key characteristics of infection with Plasmodium knowlesi?
• What is the most likely cause of infections in an immunosuppressed man with pneumonia and intestinal pain?
• Which test is commonly used to diagnose hookworm infection?
• What is the primary mode of transmission for Trichinella spiralis?
• What newer information is suggested about the pathogenicity of Blastocystis hominis?
• Which two forms does Leishmania exist in?
• Which species of Plasmodium is responsible for the most severe form of malaria?
• Which organism is responsible for causing Giardiasis?
• Which disease is primarily transmitted through contaminated water?
• What type of organism is Echinococcus granulosus?
• What is the main symptom of paragonimiasis?
• Which organism is detected by the presence of eggs in a stool sample and is commonly associated with poor hygiene?
• What laboratory test is used for detecting filariae in the blood?
• Which parasite is transmitted through the ingestion of undercooked meat?
• Eating poorly cooked pork can lead to infection with which organisms?
• What is the main route of transmission for helminth infections?
• What stage of the Plasmodium life cycle is injected into humans by mosquitoes?
• Which of the following is a common vector for Typhus?
• Select the most sensitive recovery method for Acanthamoeba spp. from lens care solutions or corneal biopsies.
• What is the primary host for Plasmodium vivax?
• Which parasite infection is characterized by larva migrans?
• Which form of Giardia lamblia is responsible for infection in humans?
• In which patient population are microsporidia primarily implicated in human disease?
• What is the infective stage of Schistosoma?
• A hunter developed symptoms after consuming bear meat. The likely causative agent is?
• What is the vector for Onchocerca volvulus, the causative agent of river blindness?
• Which parasitic disease is confirmed by the presence of adult worms in tissues?
• Which parasite requires enteric precautions in patients with severe diarrhea?
• What form of transmission is primarily responsible for the spread of Echinococcus granulosus?
• What is the method of diagnosis for cutaneous leishmaniasis?
• What is a characteristic symptom of schistosomiasis?
• Cysts of Iodamoeba bütschlii typically have which characteristic?
• Which operculated cestode egg can be recovered from human feces?
• Babesia morphologically resembles which of the following?
• What is the role of vectors in parasitic transmission?
• Which of the following is an incorrect match between symptoms and disease?
• Which parasite is known for its "leaf-shaped" morphology?
• What is a common symptom of Chagas disease?
• Which parasite stages are immediately infective for humans after passing through the gastrointestinal tract?
• Which stage of the life cycle of the tapeworm is harbored in the intermediate host?
• Which organism is a common cause of traveler's diarrhea?
• What is a key characteristic of the thick blood film examination?
• Which drug class is used in the treatment of trematode infections?
• What is the main vector for transmission of malaria?
• What disease is caused by the parasite Ascaris lumbricoides?
• Which organism is incorrectly matched with its diagnostic procedure?
• What type of granulomas can Schistosoma infections induce?
• What is the key diagnostic feature of Nematodes?
• What kind of organism is Plasmodium?
• Which protozoan organism has been implicated in waterborne and foodborne outbreaks in the United States?
• Which protozoan parasite can cause severe diarrhea and dehydration?
• Which organism is incorrectly matched with its characteristic?
• Which method is primarily used for malaria diagnosis?
• Autofluorescence is recommended for identifying which organism?
• Which species of Schistosoma primarily affects the intestines?
• What type of organism is Giardia lamblia?
• Which organism's older developing stages resemble those of Plasmodium knowlesi?
• What is the vector for West Nile virus?
• What is the infective stage of Entamoeba histolytica?
• In a patient with diarrhea, what are the cells misdiagnosed as protozoa that are actually present?
• In an outbreak of diarrheal disease traced to a municipal water supply, which is the most likely causative agent?
• Which of the following is a characteristic of parasitic infections?
• Infections caused by which organism allow humans to serve as both the intermediate and definitive host?
• Which stage of the malaria parasite is responsible for transmission by mosquitoes?
• What symptom is most commonly associated with Enterobius vermicularis infection?
• What type of life cycle do cestodes (tapeworms) typically exhibit?
• What can examination of a 24-hour unpreserved urine specimen help recover?
• What is a common treatment for giardiasis?
• Which animal serves as an intermediate host for Diphyllobothrium latum?
• Which protozoan is often asymptomatic in its host?
• In hydatid disease, what is the classification of Echinococcus granulosus in relation to humans?
• Which organism is associated with visceral larva migrans?
• How can humans become infected with Toxocara canis?
• What is the treatment of choice for infections caused by Giardia?
• What method is used to recover Acanthamoeba from damaged corneal tissues?
• The adult tapeworm of Echinococcus granulosus is found in the intestine of which animal?
• Which organisms cannot typically be transmitted in the laboratory under normal conditions?
• How is the echinococcosis infection acquired?
• What parasite can cause "black fever"?
• Which of the following human behaviors contributes significantly to the spread of parasites?
• How does malaria manifest during its acute phase?
• What is the definitive host for the Schistosoma species?
• Which parasite is known for causing schistosomiasis?
• Why were protozoan cysts barely visible in a permanent stained smear?
• Identify the incorrect association of an organism and its relevant information.
• What is a major complication of untreated Plasmodium falciparum malaria?
• What information is crucial when requesting malaria smears?
• What type of virus is associated with the syndrome known as "Chagas disease"?
• What type of parasite is Clonorchis sinensis?
• What is one significant symptom of Taenia solium infection?
• Microsporidial infections can be confirmed using which of the following methods?
• What common symptom is often observed in helminth infections?
• What specimen is commonly used to diagnose enterobiasis?
• Which type of organism often requires an intermediate host in its life cycle?
• Which organism is incorrectly matched with its infection acquisition method?
• What is the recommended clinical specimen for recovery of Enterobius vermicularis in a pediatric patient?
• What is the primary method of prevention for hookworm infections?
• What habitat is most associated with Toxoplasma gondii?
• A Gram stain from a gum lesion showed amoebae. What is the correct identification from a trichrome smear showing amoebae with a single nucleus?
• What is the infective stage of the hookworm?