Verifying instrument accuracy.

STaK-Chex® Plus Retics

Whole Blood Control

A 5-part white blood cell differential control that monitors all parameters including reticulocytes and nucleated red blood cells on Beckman Coulter® instruments.


  • The only combined control that includes all CBC parameters, reticulocytes and nucleated red blood cells which can be analyzed in a single run.
  • Assays provided for the UniCel® DxH™ 600 and UniCel DxH 800, LH 750/755, LH 780/780, LH 500 and HmX.
  • The assay contains automated and manual reticulocyte values in three clinically significant control levels and nucleated red blood cells in one level.
  • Plastic cap-pierceable vials for analyzer autosampling


  • 105-day closed-vial stability
  • 14-day open-vial stability

STATS® Interlaboratory Quality Control program is available for Streck customers.

See related products

This is also licensed for sale in Canada.

  • Resources
  • Instruments
  • Catalog Numbers
Beckman CoulterHmX
Beckman CoulterLH 500
Beckman CoulterLH 750/LH 755
Beckman CoulterLH 780/LH 785
Beckman CoulterUniCel® DxH™ 800

STaK-Chex® Plus Retics

STaK-Chex® Plus ReticsCatalog 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


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