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Filaria-specific IgG antibody (serum)

Published: August 9, 2026Updated: August 16, 2026

This blood test measures the presence of antibodies against parasitic worms called filaria, which can cause infections like lymphatic filariasis. Antibodies indicate past or current exposure to these parasites.

Quick summary

["This test helps assess potential exposure to filarial parasites, which may affect your lymphatic system or cause long-term health issues."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
51455-4
Short code
Filaria IgG1 Ser-aCnc
Synonyms
Filaria IgG1 Ser-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you live in or have traveled to regions where filarial infections are common, or if you have symptoms like swelling in the legs, arms, or other areas, persistent cough, or unexplained fluid buildup. It may also be used for screening or monitoring in certain high-risk groups.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. It usually takes a few minutes. If you’re nervous, let your healthcare provider know so they can help you relax.

What the Results Mean

Positive results suggest you have developed antibodies against filarial worms, indicating past or current infection. Negative results mean no detectable antibodies were found in this sample. Consult your doctor for interpretation based on your medical history and symptoms.

Common Causes of Positive Results

Positive results are most likely due to exposure to filarial parasites, such as *Wuchereria bancrofti*, *Brugia malayi*, or *Brugia timori*. These parasites are spread through mosquito bites and can live in lymphatic systems, potentially causing chronic infections.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Filaria IgG Antibody

Frequently asked questions

What does a positive result mean for my health?
A positive result indicates exposure to filarial parasites, which may lead to conditions like lymphatic filariasis. This can cause long-term swelling, pain, or complications in the lymphatic system. Your doctor will discuss next steps, such as further testing or treatment options tailored to your situation.
Can I get treated if my test is positive?
Yes, if your test is positive and you have symptoms, your doctor may recommend treatment with medications like ivermectin and diethylcarbamazine. Early treatment can help manage symptoms and reduce long-term complications. Follow-up testing may also be needed to monitor your response.
Do I need to take any special precautions if I have a positive result?
If you have a positive result, avoid mosquito bites to prevent reinfection. Your doctor may also advise monitoring for symptoms like swelling, pain, or fluid buildup. Work closely with your healthcare team to manage your condition effectively.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy