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Trichinella antibody screening (serum/plasma)

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

This test checks for antibodies in your blood that may indicate past exposure to the parasitic worm *Trichinella*, which can cause trichinosis—a rare but serious illness.

Quick summary

["Helps diagnose potential infection from eating contaminated meat."]

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

Key facts at a glance

LOINC
56992-1
Short code
Trichinella IgG Ser Ql IF
Synonyms
Trichinella IgG Ser Ql IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
CPT
82784
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

Why This Test Is Done

Your doctor may recommend this test if you’ve recently eaten undercooked meat (e.g., pork, game animals) or have symptoms like muscle pain, fever, or digestive issues that could suggest trichinosis. It’s also used in outbreaks or after travel to regions with higher risk.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The test looks for antibodies (IgG or IgE) that your immune system produces after exposure to *Trichinella* parasites.

What the Results Mean

Positive results suggest past exposure, but they don’t always confirm active infection. False positives can occur with other infections or vaccines. Your doctor will interpret results in context of your symptoms and travel history.

Possible Side Effects

Minor discomfort at the needle site is common. Rarely, you might feel lightheaded or experience bruising. Most side effects resolve quickly.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is primarily used as a screening tool to rule out trichinosis in high-risk individuals. It’s not a definitive diagnostic test for active infection, which may require additional tests (e.g., stool or muscle biopsy) or clinical correlation.

Short name

Trichinella IgG/IgE Antibody Screen

Frequently asked questions

Could this test show if I have trichinosis now?
This test detects antibodies from past exposure, not active infection. If you suspect recent infection, ask your doctor about additional diagnostic steps, such as muscle tests or stool exams.
Why does my doctor want me to take this test?
Your doctor may recommend it if you’ve had symptoms like muscle aches, fever, or digestive issues after eating undercooked meat, or if you’ve traveled to areas with higher risk of trichinosis. It helps assess whether you’ve been exposed to the parasite.
What if my results are positive?
A positive result means your body has likely encountered *Trichinella* parasites before, but it doesn’t always mean you’re currently infected. Your doctor will discuss next steps, which may include retesting or further evaluation based on your symptoms and medical history.
  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