Parasite Test Options

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Start from the organism or the specimen involved

Each of these answers a different parasite question — by organism, or by specimen.

Want a general stool exam plus Giardia? a stool exam for parasite forms, with a named Giardia antigen result added View Ova & Parasites with Giardia $161 $129
Diarrhea after drinking untreated water? two named stool antigens — Giardia and Cryptosporidium — rather than a general exam View Giardia and Cryptosporidium Panel $508 $406
Looking specifically for Cyclospora or Isospora? a stool examination named for those two organisms only View Cyclospora and Isospora Exam $307 $246
Have a worm you want identified? examines the worm itself under a microscope — you collect and preserve the specimen View Worm Identification Test $300 $240

Featured tests

HSA/FSA accepted

Ova & Parasites w/Giardia Antigen (Stool)

Pinpoint the cause of digestive issues
Detect hidden parasites affecting your health
Clarify unexplained stomach discomfort quickly

• All lab fees included

-20% $129 about $6 per marker

List price ~~$161~~

HSA/FSA accepted

Giardia and Cryptosporidium Antigen Panel

Detect parasites causing ongoing diarrhea
Check causes of stomach pain
Screen water-borne infection risks

-20% $406

List price ~~$508~~

HSA/FSA accepted

Ova and Parasites, Concentrate and Permanent Smear

Detects parasites in your stool.
Finds eggs of intestinal parasites.
Identifies parasitic infection sources.

-20% $109

List price ~~$136~~

HSA/FSA accepted

Cyclospora and Isospora Examination

Detect parasite infection causing diarrhea
Screen for unexplained fatigue and fever
Check causes of ongoing weight loss

-20% $246

List price ~~$307~~

HSA/FSA accepted

Parasite Identification, Worm

Identifies collected parasitic worms preserved in alcohol
Confirms parasite species through microscopic examination

-20% $240

List price ~~$300~~

HSA/FSA accepted

Cryptosporidium Antigen, EIA

Detect parasite causing ongoing diarrhea
Screen for waterborne digestive infection
Assess stomach symptoms after water exposure

-20% $323

List price ~~$404~~

HSA/FSA accepted

Cysticercus Antibody (IgG), Western Blot, Serum

Detect hidden causes of seizures or headaches
Identify signs of brain parasite infection
Screen for serious nervous system problems

-20% $650

List price ~~$813~~

HSA/FSA accepted

Entamoeba histolytica Antigen, EIA

Detect parasitic intestinal infection risks
Screen persistent diarrhea and cramping causes
Check for travel-related digestive infections

-20% $441

List price ~~$551~~

Parasite testing includes stool examinations that look for ova and parasites, stool antigen tests for organisms such as Giardia and Cryptosporidium, and selected blood antibody tests. Shoppers often compare these options when digestive symptoms, an observed worm, travel or exposure history, or a clinician’s evaluation raises a specific question. The next decision is whether the question calls for a combined stool examination, an organism-specific antigen test, a specialized examination, or a serum antibody result. Results should be reviewed with a healthcare professional when symptoms or exposure concerns are significant.

Stool examinations and antigen testing answer different questions

Ova and parasites, concentrate and permanent smear is a stool examination designed to look for parasite forms in the specimen. Ova & Parasites w/Giardia Antigen (Stool) combines that examination with Giardia Ag, EIA, Stool, adding a named Giardia antigen measurement. The Giardia and Cryptosporidium Antigen Panel is for the two named stool antigens, while Cryptosporidium Antigen, EIA targets Cryptosporidium antigen alone. Entamoeba histolytica Antigen, EIA targets the antigen named for that organism. These distinctions matter when the clinical question names one organism versus when a stool examination for ova and parasites is being considered.

Specialized examinations and blood antibody results

Some questions are not answered by a general stool examination. Cyclospora and Isospora Examination is specifically named for those two organisms, and Microsporidia Exam is a separate examination for microsporidia. Parasite Identification, Worm is intended for identification of a worm specimen. Blood-based options answer a different type of question: Cysticercus Antibody (IgG), Western Blot, Serum measures Cysticercus IgG antibody in serum. An antibody result reflects immune recognition rather than a stool antigen finding, so it should be interpreted alongside symptoms, exposure history, and other clinical information.

Parasites FAQ

A parasite test looks for evidence named by the selected method, such as ova and parasites in stool, Giardia antigen, Cryptosporidium antigen, or a serum antibody. The Ova & Parasites w/Giardia Antigen (Stool) test includes both an ova-and-parasites concentrate and permanent smear and Giardia Ag, EIA, Stool. A result contributes laboratory evidence; it does not establish the cause of symptoms by itself.

An ova and parasites examination evaluates a stool specimen using a concentrate and permanent smear, whereas Giardia Ag, EIA, Stool measures Giardia antigen. Ova & Parasites w/Giardia Antigen (Stool) includes both approaches. Giardia Antigen, EIA, Stool is limited to the named Giardia antigen, which is useful when the question is specifically about Giardia rather than an ova-and-parasites examination.

The Giardia and Cryptosporidium Antigen Panel includes the two organisms named in its title: Giardia and Cryptosporidium antigens. Giardia Antigen, EIA, Stool addresses Giardia antigen only. Cryptosporidium Antigen, EIA addresses Cryptosporidium antigen only. The two-antigen panel fits a question involving both named organisms, while a single-antigen order keeps the testing question limited to one.

Cyclospora and Isospora Examination is specifically an examination for Cyclospora and Isospora, not a Giardia or Cryptosporidium antigen order. That organism-specific scope matters when the testing question has been narrowed to those names. Its result should be considered with the specimen type, symptom pattern, travel or exposure details, and professional assessment rather than treated as a standalone diagnosis.

Parasite Identification, Worm is the relevant option when the purpose is identification of a worm specimen. It differs from stool tests that examine a stool sample for ova and parasites or measure an antigen such as Giardia Ag, EIA, Stool. Proper interpretation depends on what was submitted and the clinical situation, so persistent symptoms or an unusual finding warrant professional review.

Cysticercus Antibody (IgG), Western Blot, Serum measures Cysticercus IgG antibody in serum. It is not the same measurement as a stool antigen or an ova-and-parasites smear, because it evaluates an antibody response in blood. Antibody findings need clinical interpretation with exposure history, symptoms, and relevant medical evaluation; they do not by themselves diagnose active disease or determine treatment.

No, a stool antigen result and an ova-and-parasites examination report different named evidence. Giardia Ag, EIA, Stool measures Giardia antigen, while Ova and Parasites, Concentrate and Permanent Smear examines stool with a concentrate and permanent smear. Ova & Parasites w/Giardia Antigen (Stool) combines those elements when both the Giardia antigen question and an ova-and-parasites examination are relevant.

Organism-specific tests keep the laboratory question aligned with a named organism or organism pair. Entamoeba histolytica Antigen, EIA measures the antigen named for Entamoeba histolytica; Cryptosporidium Antigen, EIA measures Cryptosporidium antigen; and Microsporidia Exam is an examination for microsporidia. These are distinct from a general ova-and-parasites concentrate and permanent smear, which has a different stated approach.

Ordering & Results FAQ

You'll receive it via email within 60 seconds of your order unless it requires additional processing (only very complex orders do).

Many general wellness test results are typically available online within 2-3 business days. However, some tests will require additional processing time. You will immediately receive an email & SMS notification when your results are available.

We do not share your results with your physician, insurance company, or any other third party.