{"id":"toxoplasma-igm","name":"Toxoplasma gondii IgM","shortName":"Toxo IgM","aliases":["Toxoplasma IgM","Toxoplasma gondii Antibody IgM","Toxo IgM","Toxoplasma Ab IgM","Toxoplasma Antibody (IgM)","Toxoplasma gondii Ab, IgM","Toxoplasma gondii Antibody, IgM","Toxoplasma IgM Antibody","Toxoplasma gondii IgM Antibody","Toxoplasma Antibody IgM","Toxo IgM Antibody","Toxoplasma gondii, IgM","T. gondii IgM"],"abbreviations":["Toxo IgM","T. gondii IgM","TOXO-M"],"loinc":[{"code":"40678-5","primary":true},{"code":"8040-8","primary":false},{"code":"25542-2","primary":false},{"code":"5390-0","primary":false}],"specimen":"serum","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Looks for IgM antibodies to the Toxoplasma parasite. They appear early in an infection but can linger for a year or more.","url":"https://bloodtesttracker.com/markers/toxoplasma-igm","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}