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CD-Chex Plus is an FDA-cleared positive procedural control for T-lymphocyte, B-lymphocyte and NK cell enumeration. It is available in two clinically relevant levels of CD4+ cells and features a CD34+ population and several additional parameters that can be used as leukemia and lymphoma quality controls. This control offers 30-day open-vial stability, which eliminates the need to track thermal openings, and 90-day closed-vial stability, reducing the number of shipments, associated costs and time spent performing lot-to-lot correlation.
CD-Chex Plus and CD-Chex Plus CD4 Low are available in plastic vials with pierceable caps for use with automated flow cytometry sample preparation instruments and are assayed for immunophenotyping with BD® Biosciences, Beckman Coulter® and Accellix™ flow cytometry systems.
Assayed for 30 parameters, including T-lymphocytes, B-lymphocytes and NK cells
Contains a CD34+ population and is available in two clinically relevant CD4+ levels
Compatible with BD Biosciences, Beckman Coulter and Accellix flow cytometry systems
30-day open-vial stability; 90-day closed-vial stability
Manufacturer established assay ranges – no need to verify range per CAP requirements for qualitative testing
Reduces the need for labs to hold and validate patient samples for use as a control
Fewer lot-to-lot correlations saves time and resources
Access to STATS®, our free interlaboratory quality control program for peer group data comparison
| Description | Item Number |
|---|---|
| 1 x 3.0 mL CD-Chex Plus, Normal | 213323 |
| 1 x 3.0 mL CD-Chex Plus CD4 Low | 213324 |
| 2 x 3.0 mL CD-Chex Plus, Normal | 213365 |
| 2 x 3.0 mL CD-Chex Plus CD4 Low | 213366 |
| 2 x 3.0 mL CD-Chex Plus Low, Normal | 213391 |
| 4 x 3.0 mL CD-Chex Plus Low, Normal | 213369 |
| 5 x 3.0 mL CD-Chex Plus, Normal | 213367 |
| 5 x 3.0 mL CD-Chex Plus CD4 Low | 213368 |
| 10 x 3.0 mL CD-Chex Plus Low, Normal | 213370 |
CD-Chex Plus is an FDA-cleared positive procedural control that provides 30 assayed parameters for immunophenotyping by flow cytometry, including T-lymphocytes, B-lymphocytes and NK cells. It is available in two clinically relevant levels of CD4+ cells and features a CD34+ population and several additional parameters that can be used as leukemia and lymphoma quality controls.
Yes, CD-Chex Plus is FDA-cleared as a positive procedural control for T-lymphocyte, B-lymphocyte and NK cell enumeration. This clearance provides assurance of quality and performance for laboratories performing immunophenotyping for HIV monitoring, immune function assessment and hematologic malignancy evaluation.
CD-Chex Plus is assayed for 30 parameters, making it one of the most comprehensive flow cytometry controls available. This extensive marker coverage allows laboratories to use a single control for multiple testing applications, including lymphocyte subset enumeration and leukemia/lymphoma immunophenotyping.
CD-Chex Plus is compatible with BD Biosciences, Beckman Coulter and Accellix flow cytometry systems. This expanded compatibility ensures that laboratories using any of these major platforms can implement CD-Chex Plus in their quality control programs.
CD-Chex Plus is available in two clinically relevant levels of CD4+ cells to monitor performance across the range seen in both healthy individuals and immunocompromised patients, such as those with HIV. Having two levels allows laboratories to verify instrument and assay performance at different clinically important CD4+ concentrations.
CD-Chex Plus offers 30-day open-vial stability and 90-day closed-vial stability. This extended stability means fewer lot-to-lot correlations, which saves time and resources while ensuring consistent quality control performance throughout the product’s life.
Yes, CD-Chex Plus contains a CD34+ population, making it useful not only for lymphocyte subset enumeration but also for monitoring performance of CD34+ stem cell quantitation assays. This multi-purpose capability reduces the number of different controls laboratories need to maintain.
With 30 assayed parameters covering lymphocyte subsets, NK cells and markers relevant to hematologic malignancies, CD-Chex Plus serves as a comprehensive quality control solution for multiple workflows. This consolidation reduces inventory complexity, simplifies quality control procedures and provides consistent performance monitoring across HIV testing, immune function assessment and oncohematology applications using a single control product.
CD-Chex Plus and other Streck flow controls contain stabilized human blood cells that replicate actual patient samples, allowing the control to test the entire preparation, staining and analysis procedure. This patient-like composition provides more realistic quality control assessment than synthetic alternatives and helps laboratories identify issues across the complete workflow from sample handling through final analysis, ensuring that all procedural steps are performing correctly.
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