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CD-Chex CD34 is a ready-to-use, FDA-cleared positive procedural control for enumerating CD34 positive cells by flow cytometry. Designed to resemble a patient sample, CD-Chex CD34 contains human leukocytes, erythrocytes and CD34 positive cells with characteristics similar to human hematopoietic progenitor cells. This control does not require any dilution and 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 CD34 is compatible with flow cytometry systems using ISHAGE gating strategies for enumeration of CD34 cells and for the following commercially available enumeration kits: BD® Biosciences ProCOUNT™ Progenitor Cell Enumeration Kit, BD Stem Cell Enumeration Kit and Beckman Coulter® Stem-Kit.
Only commercially available CD34 control with three levels
No dilution required
Whole blood control- resembles patient sample
Compatible with flow cytometers using the ISHAGE protocol and enumeration kits
30-day open-vial stability; 90-day closed-vial stability
Helps clinical laboratories meet quality requirements for CD34+ stem cell quantitation
Long shelf life reduces the number of shipments, associated costs and lot-to-lot correlations
Manufacturer established assay ranges – no need to verify range per CAP requirements
Access to STATS®, our free interlaboratory quality control program for peer group data comparison
| Description | Item Number |
|---|---|
| 2 x 1.0 mL (Level 1) | 213337 |
| 2 x 1.0 mL (Level 2) | 213347 |
| 2 x 1.0 mL (Level 3) | 213383 |
| 2 x 1.0 mL (Levels 1 & 2) | 213338 |
| 4 x 1.0 mL (Levels 1 & 2) | 213339 |
CD-Chex CD34 is an FDA-cleared ready-to-use positive procedural control for enumerating CD34 positive cells by flow cytometry. Designed to resemble a patient sample, CD-Chex CD34 contains human leukocytes, erythrocytes and CD34 positive cells with characteristics similar to human hematopoietic progenitor cells.
Yes, CD-Chex CD34 is FDA-cleared for use as a positive procedural control for CD34+ cell enumeration by flow cytometry. This clearance provides assurance of quality and performance for laboratories performing stem cell quantitation for transplant applications.
CD-Chex CD34 is the only commercially available CD34 control with three levels. This tri-level format allows laboratories to monitor performance across the clinically relevant range of CD34+ cell concentrations found in bone marrow, cord blood and mobilized patient samples.
No, CD-Chex CD34 does not require any dilution and is ready to use directly from the vial. This convenience simplifies quality control procedures, reduces the potential for dilution errors and saves technician time.
CD-Chex CD34 offers 30-day open-vial stability, which eliminates the need to track thermal openings, and 90-day closed-vial stability. This long shelf life reduces the number of shipments, associated costs and time spent performing lot-to-lot correlations.
CD-Chex CD34 is compatible with flow cytometers using the ISHAGE (International Society of Hematotherapy and Graft Engineering) protocol and commercially available CD34 enumeration kits. This broad compatibility allows laboratories to use CD-Chex CD34 regardless of their specific platform or reagent system.
CD-Chex CD34 helps clinical laboratories meet quality requirements for CD34+ stem cell quantitation by providing manufacturer established assay ranges, eliminating the need to verify the range per CAP requirements. Users also have access to STATS, Streck’s free interlaboratory quality control program for peer group data comparison.
CD34+ enumeration requires accurate identification of rare stem cells within a complex mixture of blood cells. CD-Chex CD34 is a whole blood control containing human leukocytes, erythrocytes and CD34+ cells that tests the entire analytical process including sample preparation, gating strategies and rare event detection. This patient-like composition ensures that quality control challenges the complete workflow rather than just the detection step.
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