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Anti-Toxoplasma IgG Antibody (Serum/Plasma)

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

This test checks for antibodies to the Toxoplasma parasite, which can indicate past or current infection.

Quick summary

["Knowing your antibody status helps assess exposure to Toxoplasma, a parasite that may affect immune function or pregnancy safety."]

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

Key facts at a glance

LOINC
40714-8
Short code
G lamblia IgM Ser Ql IA
Synonyms
G lamblia IgM Ser Ql IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
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

Doctors may order this test if you have symptoms like fever, fatigue, or muscle pain that could suggest infection. It’s also used in pregnancy to check for Toxoplasma exposure, which can be harmful to a developing fetus. Additionally, people with weakened immune systems (e.g., due to HIV or chemotherapy) may need this test to monitor infection risk.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The sample is sent to a lab for testing.

What the Results Mean

Positive results mean you have antibodies, suggesting past infection. Negative results mean no detectable antibodies, indicating no recent exposure. Results alone don’t confirm active infection; they’re often used alongside clinical symptoms or other tests.

Common Conditions Monitored

This test helps diagnose or rule out Toxoplasma infection in people with symptoms or risk factors (e.g., pregnancy, immune disorders). It’s also used to screen for congenital toxoplasmosis in newborns if maternal exposure is suspected.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Toxoplasma IgG Antibody

Frequently asked questions

What does a positive result mean?
A positive result indicates you’ve likely been exposed to Toxoplasma at some point. This doesn’t always mean you’re currently infected, but it means your body has developed immunity. In pregnancy, it’s important to confirm exposure early to guide treatment decisions.
Can I get infected from this test?
No, this test does not transmit Toxoplasma. Blood samples are handled safely in a lab to prevent exposure. If you’re concerned about infection, discuss it with your healthcare provider.
How long do results take?
Results are typically available within 3–5 business days, depending on lab processing times. Your doctor will contact you with the final report.
  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