DNA Giardia lamblia — PCR, qualitative
Detects Giardia lamblia DNA — protozoan parasites causing giardiasis. PCR detects genetic material even when eggs/larvae are destroyed. More sensitive than microscopy.
Infection routes:
- dirty hands;
- unwashed vegetables, fruits;
- contaminated water;
- contact with infected items;
- in children's groups with poor hygiene.
Recommended for:
- children;
- persons with chronic GI problems;
- unexplained allergies; elevated eosinophils;
- prolonged intestinal symptoms;
- negative microscopy results.
Biomaterial: Stool
- Do not take laxatives 2-3 days before
- Do not use enemas or rectal suppositories
- Collect stool naturally; exclude urine and water contamination
- Use sterile container; collect from 3-5 different areas
- Deliver within 2-3 hours; store at +2 to +8°C up to 8-12 hours if needed
Medications: If taking antiparasitic drugs — inform physician; collect before treatment if possible
Note: PCR testing after treatment is usually done no earlier than 2-3 weeks after.
- Abdominal pain and discomfort;
- bloating, gas;
- nausea, reduced appetite; u
- nstable stool (diarrhea or constipation);
- unexplained allergic reactions;
- skin rashes, itching; elevated eosinophils;
- weakness, fatigue;
- suspected parasitic infection;
- negative microscopy with symptoms.
Note: Test detects even small parasite DNA fragments with proper sample collection.
Negative — G. lamblia DNA not detected.
Positive — G. lamblia DNA detected; confirms parasite presence.
Physician consultation required at positive result.
Infectious disease parasitologist consultation recommended. Self-treatment not recommended.
