Cryoglobulin
33.27
3x 4mL plain red top tubes (no anticoagulant). Gold (gel) or heparin plasma tubes are NOT suitable.
Collection must be at Waikato Hospital phlebotomy clinic.
Blood must be collected into pre-warmed tubes and kept at 37ºC in sand thermos for immediate transfer to Central Registration, Waikato Hospital laboratory. External patients must have the specimen collection done at the Phlebotomy Clinic, Waikato Hospital.
Immunology
Mon - Thu, 0800 - 1630 Fri, 0800 - 1400 excl. Public Holidays
10 days
Negative or trace. If positive, an estimate of small, moderate or large will be given and a cryocrit performed (see notes below). Cryocrit is reported as the percentage volume of cryoglobulin in the serum.
Rheumatoid factor, C4, immunoglobulins and protein electrophoresis will be performed on all requests. When the screen is positive, a cryocrit will be performed. If the result is 1% or greater an immunofixation will be performed on the initial sample to ascertain whether the cryoblobulin is monoclonal.
