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HelpTest Code CRY Cryoglobulin, Semiquantitative
Specimen and Container/Tube
Blood
Red top on warm pack
Rejection Criteria
Whole blood/unspun samples greater than 6 hours will be
rejected.
Reference Values
Negative <0.5%
Turnaround Time
Day(s) Performed
Monday through Sunday
Specimen Type and Container/Tube
Blood
Red top on warm pack
Volume
10 mL
Offsite Collection Instructions
Collect 10mL of blood in Red Top tube.Transport blood specimen
on warm pack to processing area of lab.Allow blood to clot at
37°C, typically 15-30 minutes. Use a 37°C water bath or
37°C incubator if available, or keep the blood on warm packs if
that is the only option.Promptly centrifuge the blood after clotted
at room temperature for 5 minutes at 5,500 rcf (Calculate rpm
depending on centrifuge rotor size). (Do NOT cetnrifuge at 4°C)Remove
all serum into a clean aliquot tube.Transfer serum at room
temperature to UCMC Clinical
Immunology Laboratory.It would be helpful to notify the Clinical
Immunology Lab that a sample is being sent to ensure it is placed
at 37°C upon arrival.
UCMC Collection Instructions
Collect blood from venipuncture. Fill red top tube
completely and put on warm pack. Send to the laboratory
immediately.
LOINC
30182595
Container/Tube
Red top on warm pack
Specimen Minimum Volume
7 mL
CPT
82595
Method Name
Precipitation
Reject Due To
Whole blood/unspun samples greater than 6 hours will be
rejected.
Pediatric Volume
7 mL
Transport Instructions
Collect 10mL of blood in Red Top tube.Transport blood
specimen on warm pack to processing area of lab.
Allow blood to clot at 37°C, typically 15-30 minutes. Use a 37°C water bath or
37°C incubator if available, or keep the blood on warm packs if that is the only option.Promptly centrifuge the blood after
clotted at room temperature for 5 minutes at 5,500 rcf (Calculate rpm depending on centrifuge rotor size). (Do NOT centrifuge at 4°C)
Remove all serum into a clean aliquot tube.Transfer serum at room
temperature to UCMC Clinical Immunology Laboratory.It would be helpful to notify the
Clinical Immunology Lab that a sample is being sent to ensure it is placed
at 37°C upon arrival.
Methodology
Precipitation