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Donor, Chagas Screen
Test CodeCHAGAS
Quest Code
91986
Alias/See Also
91986
CPT Codes
86753
Preferred Specimen
6.0 mL Serum
Minimum Volume
3.0 mL Serum
Instructions
Label the tubes according to your standard operating procedure, making sure that each tube has at least two unique patient identifiers.
If transport temperature will be frozen, centrifuge the red/lavender-top tube and transfer the serum/plasma into a plastic screw-cap vial. The plastic screw-cap vial (aliquot tube) containing serum or plasma must be labeled with the specimen type (serum or plasma) and at least two unique patient identifiers. Aliquot tubes must be processed and labeled at the original collection site. If aliquot tubes are submitted, do not send the original red/lavender top tube.
Room temperature stability is 24 hours for unspun serum or plasma and (transport only) 7 days for spun.
Please note: This test is to be used for the screening of DONORS of human cells, tissues, and cellular and tissue- based products for infectious diseases.
For Shipper collection please see detailed instructions in Test Resources.
If transport temperature will be frozen, centrifuge the red/lavender-top tube and transfer the serum/plasma into a plastic screw-cap vial. The plastic screw-cap vial (aliquot tube) containing serum or plasma must be labeled with the specimen type (serum or plasma) and at least two unique patient identifiers. Aliquot tubes must be processed and labeled at the original collection site. If aliquot tubes are submitted, do not send the original red/lavender top tube.
Room temperature stability is 24 hours for unspun serum or plasma and (transport only) 7 days for spun.
Please note: This test is to be used for the screening of DONORS of human cells, tissues, and cellular and tissue- based products for infectious diseases.
For Shipper collection please see detailed instructions in Test Resources.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Serum/plasma
Room temperature: 24 hours for unspun, 7 days for spun
Refrigerated: 10 days
Frozen: 28 days
Room temperature: 24 hours for unspun, 7 days for spun
Refrigerated: 10 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Sample not marked serum/plasma • Specimens other than serum or EDTA plasma • Heat-treated specimens
Methodology
Enzyme Linked Immunosorbent Assay (ELISA)
Setup Schedule
Sets up 5 days a week.
Reference Range
Non-Reactive
Clinical Significance
Trypanosoma cruzi is a flagellated, protozoan parasite, which is endemic to regions of South and Central America and Mexico. It is the causative agent of Chagas Disease. Infection is chronic, asymptomatic and untreatable. The Chagas screening assay detects antibodies to T. cruzi and is used to screen blood and tissue donors.
Performing Laboratory
Quest Diagnostics Chantilly Nichols Institute
14225 Newbrook Dr.
Chantilly, VA 20151-2228
