Lab test

Ascaris (Common Roundworm) Allergy Test

An Ascaris-specific IgE blood test measures antibodies the immune system may produce against Ascaris, a roundworm that can inhabit the small intestine.

Typical price

From $49

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

An Ascaris-specific IgE blood test measures antibodies the immune system may produce against Ascaris, a roundworm that can inhabit the small intestine. It is a screening tool used to assess immune response to Ascaris antigens, not a diagnosis on its own. A clinician may order it when evaluating someone with possible exposure or symptoms concerning for roundworm, often alongside other tests. Results are interpreted with clinical history and other findings.

• Ascaris-specific IgE IgE antibodies directed against Ascaris (common roundworm) antigens; used to assess immune sensitization to this parasite.

• Possible exposure to soil or water contaminated with roundworm
• Symptoms being evaluated for a possible roundworm infection
• Evaluation as part of a broader parasitic or allergy workup
• Travel or residence where roundworm exposure may occur

• No fasting is required for most IgE allergy tests
• Tell the provider about antihistamines and other medications that may affect interpretation
• A single blood draw is collected; no special preparation is needed

Results are reported as a level of Ascaris-specific IgE, often described as negative, low, moderate, or high. A detectable or elevated level may indicate immune sensitization to Ascaris antigens, but it does not by itself confirm an active infection or explain symptoms. A negative result does not completely exclude exposure. Because parasite testing is interpreted in context, discuss results with a healthcare provider.

• Alabama
• Alaska
• Arizona
• Arkansas
• California
• Colorado
• Connecticut
• Delaware
• Florida
• Georgia