Verifying instrument accuracy.

Retic-Chex® II

Whole Blood Control

A tri-level control manufactured with reticulocytes that resemble the appearance of patient samples for accurate identification.


  • Available in 1.0 mL plastic squeeze dropper vials
  • Assayed for manual methods including the Miller Ocular
  • Can be used for automated methods including Beckman Coulter® HmX and LH 500, and Abbott CELL-DYN® 3500 and 3700


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

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

Retic-Chex® Stain

  • A buffered and filtered New Methylene Blue stain to be used with Retic-Chex II and patient samples
  • Available in 3.0 mL and 15 mL plastic squeeze dropper vials
  • Room temperature storage
  • 365-day closed vial and open-vial stability


See related products

This is also licensed for sale in Canada.

  • Resources
  • Instruments
  • Catalog Numbers
Abbott LaboratoriesCELL-DYN® 3500/3700
Beckman CoulterHmX
Beckman CoulterLH 500

Retic-Chex® II

Retic-Chex® IICatalog Number
3 x 1.0 mL Retic-Chex II (Level 1, 2 & 3), 1 x 3.0 mL Stain285101
4 x 1.0 mL Retic-Chex II (Level 1)285104
4 x 1.0 mL Retic-Chex II (Level 2)285204
4 x 1.0 mL Retic-Chex II (Level 3)285304
6 x 1.0 mL Retic-Chex II (Level 1, 2 & 3)285106
2 x 15 mL Retic-Chex Stain285410
4 x 3.0 mL Retic-Chex Stain285404


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Standing Order Schedule

Schedule I: 13 shipments (a shipment every 28 days)
Schedule II: 7 shipments (a shipment every 56 days)
Schedule III: 5 shipments (a shipment every 84 days)
Schedule VI: 3 shipments (a shipment every 168 days)

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Note: Standing orders are shipped during the week of the release date.