Donor, Chagas Screen

Test Code

Quest Code

Alias/See Also

CPT Codes

Preferred Specimen
6.0 mL Serum

Minimum Volume
3.0 mL Serum

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.

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
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

Enzyme Linked Immunosorbent Assay (ELISA)

Setup Schedule
Sets up 5 days a week.

Reference Range

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

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.