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Test 11: Parasites

  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.