{"id":"cryoglobulin-screen","name":"Cryoglobulin Screen","shortName":"Cryoglobulin","aliases":["Cryoglobulin","Cryoglobulins","Cryoglobulin, Qualitative","Cryoglobulins, Serum","Cryoglobulin Detection","Cryoprotein","Cryoglobulin Qualitative","Cryoglobulin Screen, Serum","Cryoglobulin, Serum","Qualitative Cryoglobulin","Cryoglobulin Test"],"abbreviations":[],"loinc":[{"code":"5117-7","primary":true},{"code":"12203-6","primary":false},{"code":"12202-8","primary":false},{"code":"12204-4","primary":false},{"code":"12207-7","primary":false},{"code":"2167-5","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 whether proteins in your blood clump when cold and dissolve when warmed. A negative result means none were seen.","url":"https://bloodtesttracker.com/markers/cryoglobulin-screen","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}