Donor, Chagas Screen

Test Code

91986

Alias/See Also

LAB722

Preferred Specimen

2 mL serum, or
2 mL plasma collected in EDTA (lavender-top) tube

Minimum Volume

1 mL

Instructions

For Shipper collection please see detailed instructions in Test Resources.
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.

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.

Transport Container

Transport tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 90 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Sample not marked serum/plasma • Specimens other than serum or plasma • Heat-inactivated specimens • Pooled specimens • Specimens with obvious microbial contamination • Specimens with fungal growth

Methodology
Enzyme Linked Immunosorbent Assay (ELISA)

Setup Schedule

Set up: Daily; Report available: 36 hours

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.

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.