Quiz 11: Parasites

Please choose the one, most correct answer to each question or statement.

1. Children with roundworm infection:
   • Usually appear well and have no symptoms.
   • Present with blood in the stool.
   • Commonly become jaundiced.
   • May develop convulsions due to cysts in the brain.
2. What should be used to treat roundworm infection?
   • Oral antibiotics.
   • Metronidazole (Flagyl).
   • Mebendazole or albendazole.
   • Liquid paraffin.
3. Roundworm infection can be prevented by:
   • Safe disposal of human faeces.
   • Boiling drinking water.
   • Avoiding uncooked meat.
   • Not having dogs as pets.
4. Severe whipworm infection presents with:
   • Loose stools with blood.
   • Segments of worm in the stool.
   • Vomiting worms.
   • An itchy skin rash on the ankles.
5. Pinworm infection usually presents with:
   • Abdominal pain and distension.
   • A maculopapular rash.
   • Cough and wheeze.
   • Perianal itching and scratching at night.
6. What is an important complication of severe hookworm infection?
   • Rectal prolapse.
   • Iron deficiency anaemia.
   • Severe malnutrition.
   • Haematuria (blood in the urine).
7. Tapeworm infection is common:
   • In areas where children swim in dams and rivers.
   • In families where partially cooked pork is eaten.
   • In towns where dogs are kept as pets.
   • In rural areas where pigs are allowed to eat human faeces.
8. Neurocysticercosis (many small cysts in the brain) results from:
   • Swallowing the eggs of the pork tapeworm.
   • Human infection with the sheep or goat tapeworm.
   • Ear infection with maggots (fly larvae).
   • Pneumocystis infection.
9. Hydatid disease is due to human infection with the:
   • Cat tapeworm.
   • Dog tapeworm.
   • Pig tapeworm.
   • Cow tapeworm.
10. What is an important sign of Giardia infection?
    • Itching of the skin.
    • Severe vomiting and dehydration.
    • Diarrhoea.
    • Blood in the stools.
11. Giardiasis should be treated with:
    • Metronidazole (Flagyl).
    • Mebendazole.
    • Albendazole.
    • Praziquantel.
12. Amoebiasis is an important cause of:
    • Renal failure.
    • Dysentery.
    • Asthma.
    • Convulsions.
13. Many intestinal parasites can be prevented by:
    • Immunisation.
    • Avoiding unpasteurised milk.
    • Routine deworming each year with co-trimoxazole.
    • A safe source of clean drinking water.
14. Bilharzia parasites infect and multiply in:
    • Mosquitoes.
    • Water snails.
    • The gut of pigs.
    • The soil.
15. Bilharzia infection of the bladder usually presents with:
    • Abdominal pain.
    • A high fever.
    • Pain and difficulty passing urine, especially at night.
    • Blood in the urine towards the end of micturition (passing urine).
16. The clinical diagnosis of malaria can be confirmed by:
    • Staining a thick blood smear.
    • Examining a spun deposit of urine.
    • Measuring the serum bilirubin concentration.
    • Determining the packed cell volume or haemoglobin concentration.
17. A dangerous feature of severe malaria is:
    • Oedema of the face and ankles.
    • Hypertension.
    • A depressed level of consciousness.
    • A high blood glucose concentration.
18. Uncomplicated malaria should be treated with:
    • Intravenous quinine plus clindamycin.
    • Oral Coartem.
    • Oral chloroquine alone.
    • A single dose of intramuscular tetracycline.
19. What is the best way of preventing malaria?
    • Take prophylactic drugs for the time you are in the malaria region.
    • Prevent mosquito bites.
    • Only visit malaria regions in the rainy season.
    • Prevention is not needed for people who live in malaria regions as they rapidly become immune to malaria.
20. The recommended malaria prophylaxis for young children under 10 kg is:
    • Malanil (atovaquone plus proguanil).
    • Doxycycline.
    • Chloroquine.
    • Coartem.