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Schistosoma Haematobium IgG Antibody, Qualitative (Deprecated)

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

A qualitative antibody test for exposure to Schistosoma haematobium, a parasite that can cause urinary schistosomiasis.

Quick summary

["A positive result suggests exposure to Schistosoma haematobium, but clinical evaluation is needed because antibodies may persist after infection."]

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

Key facts at a glance

LOINC
25780-8
Short code
Deprecated S chartarum IgG RAST Ql
Synonyms
Deprecated S chartarum IgG RAST Ql
Category
liver
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
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

What is this test?

This test checks a patient sample for IgG antibodies to Schistosoma haematobium, a blood fluke that can infect the urinary tract. A qualitative result is reported as positive, negative, or sometimes indeterminate.

Why might I need this test?

This test may be used when urinary schistosomiasis is suspected because of symptoms such as blood in the urine, urinary discomfort, or repeated urinary tract infections. It may also be considered in people with relevant travel or residence history in areas where the parasite is common.

How is the test performed?

A laboratory analyzes a patient sample for Schistosoma haematobium–specific IgG using a validated antibody assay. Because this test is qualitative, it indicates whether antibodies were detected rather than providing a measured antibody concentration.

How do I prepare for the test?

No special preparation is usually required. Follow the laboratory’s instructions about the required specimen and timing, and tell your clinician if you have recently traveled to an area where schistosomiasis occurs.

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.

A positive result may indicate previous or ongoing infection with Schistosoma haematobium, but antibodies can remain detectable for years after successful treatment. Cross-reactions with other infections are also possible, so results should be interpreted with symptoms, exposure history, and confirmatory testing when appropriate. A negative result does not completely exclude infection, particularly early after exposure.

Short name

Schistosoma haematobium IgG antibody

Frequently asked questions

What does a positive result mean?
It means that antibodies to Schistosoma haematobium were detected and suggests exposure to the parasite. Your clinician will consider your symptoms, travel history, and other test results to determine whether infection is likely.
Does a negative result rule out schistosomiasis?
No. Antibodies may not be detectable soon after infection, and the timing and quality of the specimen can affect the result. If infection remains strongly suspected, your clinician may recommend repeat or confirmatory testing.
Is this test the same as testing for parasites in urine or stool?
No. This test detects antibodies, while urine or stool examinations may look for parasite eggs. Your clinician may use several tests together when diagnosing schistosomiasis.
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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