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Schistosoma IgG Antibody (Serum) – Parasite-Specific Immunoglobulin G

Published: August 9, 2026Updated: August 17, 2026

This blood test checks for antibodies to the parasite *Schistosoma*, which can cause infections like schistosomiasis. Antibodies indicate past or current exposure.

Quick summary

["This test helps diagnose or monitor infections caused by parasitic worms that live in water."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
102815-8
Short code
Schistosoma IgE RAST
Synonyms
Schistosoma IgE RAST
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
10
Ref high
40
Critical range
— – 500 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
rast
CPT
84484
SNOMED
302774002
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 doctor may recommend this test if you’ve traveled to regions with high risk for schistosomiasis (e.g., Africa, South America, Asia) or if you have symptoms like skin rashes, fever, or digestive issues that could suggest infection. It may also be used to confirm a diagnosis after exposure or during treatment follow-up.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. The process takes about 5 minutes. You may feel a brief pinch, but most people tolerate it well.

What the Test Results Mean

Positive results indicate the presence of *Schistosoma* antibodies, suggesting past or ongoing infection. Negative results mean no detectable antibodies, but this doesn’t rule out infection if symptoms persist. Results are used alongside clinical findings and symptoms to guide diagnosis.

Common Symptoms of Schistosomiasis

Infection may cause flu-like symptoms early on (e.g., fever, fatigue) or later lead to skin irritation, digestive issues (e.g., diarrhea), or urinary problems. Some people develop chronic inflammation in organs like the liver or bladder. Antibody tests help confirm infection even if symptoms are mild or absent.

Reference range

Adult: 10-40 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Schistosoma Parasite Antibody Test

Frequently asked questions

Could I have schistosomiasis without testing?
Yes. Symptoms can be vague or absent, especially in early stages. Antibody tests are critical for diagnosing infections in areas where exposure is common, even if you don’t feel sick.
What if my test is positive?
A positive result means you’ve likely been exposed to *Schistosoma*. Your doctor may recommend further testing (e.g., stool or urine exams) or treatment with antiparasitic medication, depending on your symptoms and medical history.
How often should I get this test?
Only if your doctor orders it for specific reasons, such as travel history, symptoms, or risk factors. Routine testing isn’t recommended unless advised.
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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 17, 2026. · Read our editorial policy