Cryoglobulin (% Cryocrit), Serum

LOINC codes: 5117-7
Tests that measure Cryoglobulin (% Cryocrit), Serum: Quest Diagnostics 2

Ranges

Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ

Quest Diagnostics, Cryoglobulin (% Cryocrit), Serum 36562

Population	Interval
Cryoglobulin Qualitative	Negative
% Cryocrit	None detected

Quest Diagnostics test catalog, 36562

Tests

Check the catalog code, specimen, method and preparation for every test that measures Cryoglobulin (% Cryocrit), Serum. Select up to five tests to compare them side by side.

Quest Diagnostics 2 tests

Single-analyte tests

Cryoglobulin, Qualitative Analysis 383
Serum · Fasting required
Method and collection
Method
Visual Inspection
Preparation
Overnight fasting is required
Collection
Allow blood to clot for one (1) hour in a 37° C water bath, incubator, heat block or heel warmer. After clotting, centrifuge the specimen as quickly as possible. It is not necessary to use a warm centrifuge but do not use a refrigerated one. Decant all of the serum into one transport vial (do not aliquot any of the cryoglobulin serum into any other tube). Transport at room temperature preferred. Note: If the sample is not kept at 37° C during clotting, the cryoglobulin, if present, can precipitate during centrifugation and be lost in the clot resulting in a false negative result.
Reference notes
None detected
Quest Diagnostics catalog page

Panels that include this biomarker

Cryoglobulin (% Cryocrit), Serum 36562
2 analytes · Serum · Fasting required · Turnaround Set up: Mon-Sat (Mon a.m., Tues-Sat a.m. and p.m.); Report available: 8 days
Method and collection
Method
Visual Inspection
Preparation
Overnight fasting is required
Collection
Allow blood to clot for one (1) hour in a 37° C water bath, incubator, heat block or heel warmer. After clotting, centrifuge the specimen as quickly as possible. It is not necessary to use a warm centrifuge but do not use a refrigerated one. Decant all of the serum into one transport vial (do not aliquot any of the cryoglobulin serum into any other tube). Transport at room temperature preferred. Note: If the sample is not kept at 37° C during clotting, the cryoglobulin, if present, can precipitate during centrifugation and be lost in the clot resulting in a false negative result.
Quest Diagnostics catalog page

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Sources

Quest Diagnostics test catalog
2 tests: codes, specimens, methods, preparation and reference intervals.
LOINC 5117-7
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Cryoglobulin (% Cryocrit), Serum
Registered studies that measure Cryoglobulin (% Cryocrit), Serum, on the U.S. National Library of Medicine registry.

Verify these ranges and sources

We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

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