Parasites Identification: Direct & Concentrated Wet Smear Examination [Stool]

The combined use of direct and concentrated wet smear techniques aims to enhance the detection of parasites in stool samples. The direct smear allows for the identification of motile trophozoites and other visible forms in fresh stool, while the concentrated smear increases sensitivity by isolating ova, cysts, and larvae, even in low parasite burdens. This comprehensive approach is essential for diagnosing parasitic infections and guiding effective treatment.

  • Microbiology

Patient Instructions:
. Stop taking antibiotics or antiparasitic medications at least 1 - 2 weeks before sample collection, unless otherwise instructed by your doctor.
. Avoid taking some medications such as laxatives, enemas, antacids, anti-diarrheal, or rectal suppositories at least 1 week before sample collection.
. Tell your doctor if you had a recent test with contrast material, such as a barium swallow/enema. You might need to wait 1-2 weeks before providing a stool sample.
. Before collecting the sample, wash your hands thoroughly, clean and dry the area around the anus.
. Urinate first into the toilet before collecting the stool sample.
. Ensure the stool sample does not come into contact with urine, water, or toilet paper.
. Collect the stool sample in a clean, dry container and deliver it to the lab within 2 hours of collection.
. Collecting at least three stool samples over several days is advised to enhance diagnostic accuracy.
Sample Type:
Stool
Result Time:

After 2 hours 30 minutes
After cutoff: 8:00 AM next day

Storage & Transportation:
-
Cutoff Times:

7:00 PM Monday – Saturday
7:00 PM Sunday

30 minutes required for samples arrived at Cao Thang till receive by Laboratory

Biomakers
  • 1. Color
  • 8. Giardia Lamblia
  • 2. Consistency
  • 9. Ova
  • 3. Mucus
  • 10. Cyst
  • 4. Blood
  • 11. Flagellates
  • 5. Erythrocytes
  • 12. Direct parasites
  • 6. Leukocytes
  • 13. Concentrated parasites
  • 7. Yeast

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