Enteric Parasite Detection by Polymerase Chain Reaction (PCR) Probe

This test measures specific substances in your blood, urine, or other body samples to show how well certain organs and body systems are working. The results give your healthcare provider objective information that helps guide diagnosis, treatment decisions, and ongoing monitoring of your overall health.

The test uses a specialized probe to detect genetic material from common intestinal parasites. If parasites are present in your stool, their DNA will be identified and confirmed by the PCR process. This method is highly sensitive and can detect even small amounts of parasite DNA, which may not be visible under a standard microscope.

Your doctor may order this test to help diagnose a medical condition, monitor a health problem you already have, check how well a current treatment is working, or screen for disease before symptoms appear. It provides valuable information that supports timely and appropriate medical care.

Your healthcare provider may order this test if you have symptoms like persistent diarrhea, stomach cramps, bloating, or unexplained weight loss. It’s also used in travelers’ health evaluations or when investigating outbreaks of gastrointestinal illness.

A small sample, most often a blood sample drawn from a vein in your arm, is collected by a trained healthcare professional. Depending on the test, you may need to fast for a certain number of hours beforehand, avoid certain foods, drinks, or medications, and drink plenty of water so the sample can be collected easily.

You’ll need to provide a fresh stool sample collected in a sterile container. The sample is then processed and tested for parasite DNA. Results are typically available within 24–48 hours, depending on lab workflows.

Before the test, your healthcare provider will explain the procedure and give you specific instructions to follow. You may be asked to stop eating for a set period, temporarily hold certain supplements or medications, and stay well hydrated. Wear comfortable clothing with sleeves that can be rolled up, and tell the staff about any medications, allergies, or health conditions that might affect the results.

No special preparation is needed, but you may be advised to avoid certain medications (like antibiotics) that could interfere with results. If you’re pregnant or have a weakened immune system, inform your provider before testing.