{"id":"sars-cov-2-nucleocapsid-antibody","name":"SARS-CoV-2 nucleocapsid (N) antibody","shortName":"COVID N antibody","aliases":["SARS-CoV-2 Nucleocapsid Antibody","COVID-19 N Antibody","SARS-CoV-2 Total Antibody N","COVID-19 Antibody, Nucleocapsid","SARS-CoV-2 Nucleocapsid Total Ab","SARS-CoV-2 Nucleocapsid Total Antibody, Serum","SARS-CoV-2 Nucleocapsid Total Ab, S","SARS-CoV-2 Antibody, Nucleocapsid","SARS-CoV-2 Ab, Nucleocapsid","COVID-19 IgG, Qualitative","COVID-19 IgG, Qualitative by CIA","SARS-CoV-2 IgG (Nucleocapsid)","Anti-SARS-CoV-2 (N)","Elecsys Anti-SARS-CoV-2","COVID-19 Nucleocapsid Antibody"],"abbreviations":["N antibody","Anti-N","SARS-CoV-2 N Ab"],"loinc":[{"code":"94762-2","primary":true},{"code":"94563-4","primary":false},{"code":"99596-9","primary":false}],"specimen":"serum","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Checks for antibodies to a protein inside the COVID-19 virus. A positive result can be a sign of a past infection.","url":"https://bloodtesttracker.com/markers/sars-cov-2-nucleocapsid-antibody","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}