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Schistosoma antigen (serum/plasma)

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

This test checks for the presence of antigens from the parasitic worms known as schistosomes, which can cause infections called schistosomiasis.

Quick summary

["Helps diagnose parasitic infections that may affect your liver, bladder, or other organs."]

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

Key facts at a glance

LOINC
100136-1
Short code
Schist sp 14-15kD Ab Ser Ql IB
Synonyms
Schist sp 14-15kD Ab Ser Ql IB
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ib
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 Does This Test Measure?

The test detects specific proteins (antigens) produced by the schistosome worms in your blood. These antigens are released when the parasites are active in your body. This method helps identify an ongoing infection rather than past exposure alone.

Why Might Your Doctor Order This Test?

Your doctor may recommend this test if you have symptoms like fever, itching, abdominal pain, or unexplained fatigue, especially after traveling to regions with schistosomiasis risk. It’s also used in areas where the parasite is common to screen for infections.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into a vein (usually in your arm) to draw a blood sample. The process takes a few minutes, and you may feel slight discomfort.

What to Expect After the Test

After the blood is drawn, you’ll need to lie down for a few minutes to prevent excessive bleeding. Most people experience minimal bruising or soreness at the site, which usually fades quickly.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Schistosoma Parasite Detection

Frequently asked questions

What Are Common Symptoms of Schistosomiasis?
Symptoms may include flu-like illness (fever, chills), skin rashes, itching, abdominal pain, or diarrhea. Some people may not show symptoms until months or years after infection.
How Is This Test Different from Other Parasite Tests?
Unlike blood smear tests that look for live parasites, this test detects antigens—proteins released by the worms—making it more sensitive for detecting current infections.
Can This Test Be Done at Home?
No, this test requires a blood sample collected by a healthcare professional in a clinical setting.
  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