The Beckman Coulter LH 750/755 and LH 780/785 instruments will be removed from the STaK-Chex® Plus Retics assay effective with lot 3303.
STaK-Chex® Plus Retics
STaK-Chex Plus Retics is a whole blood five-part white cell differential control that includes reticulocytes and nucleated red blood cells for use on Beckman Coulter® instruments. The control features vials with pierceable caps for autosampling and is available in low, normal and high levels.

Product Description
STaK-Chex Plus Retics is a whole blood five-part differential hematology control that monitors all parameters, including reticulocytes and nucleated red blood cells. The assay contains automated and manual reticulocyte values in three clinically significant control levels and nucleated red blood cells in one level. It is the only combined hematology control that includes all CBC parameters, reticulocytes and nucleated red blood cells, which can be analyzed in a single run. The precision and accuracy of the instrument’s laser is controlled each time STaK-Chex Plus Retics is analyzed. The control features vials with pierceable caps for autosampling. Its long shelf life reduces the number of shipments, associated costs and time spent performing lot-to-lot correlation.

Features
- The only combined control that includes all CBC parameters, reticulocytes and nucleated RBC
- Available in three clinically significant levels
- Plastic vials with pierceable caps for analyzer autosampling
- Assay values are available for download
- 14-day open-vial stability
- 105-day closed-vial stability
Benefits
- Helps clinical laboratories meet quality requirements
- Established assay ranges provide less room for error
- Long shelf life reduces the number of shipments and associated costs
- Fewer lot-to-lot correlations save time and resources
- Access to STATS®, a free interlaboratory quality control program with peer group data comparison and online submission
Ordering Information
Description | Catalog Number |
---|---|
4 x 4.5 mL (4 Low) | 225480 |
4 x 4.5 mL (4 Normal) | 225481 |
4 x 4.5 mL (4 High) | 225482 |
12 x 4.5 mL (12 Normal) | 225483 |
12 x 4.5 mL (4 Low, 4 Normal, 4 High) | 225485 |
Order STaK-Chex Plus Retics today
New customers
Existing customers
International customers find a distributor
Resources
Instructions (IFU)
Certificates
Product Information
Assay Zip File Downloads
Looking for an older document? Click here for archived assays and certificates.
Hematology Products
The process of whole blood calibration is critical to Streck so our customers can have the confidence that product assays are accurate. Streck’s calibrators save you from having to complete a tedious whole blood calibration procedure. Our controls are available for most brands of hematology analyzers and come in multiple levels to test accuracy and sensitivity.

The latest from the blog


ILQC: How to earn the trust of your clients and their patients
