Cell-Chex^®

Cell-Chex is a multi-level manual cerebrospinal and body fluid control for evaluating the accuracy and precision of hemacytometer RBC and WBC counts, urate and CPPD crystal identification and manual WBC differential procedures.

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TECHNICAL DOCUMENTS

Three small vials of Cell-Chex - a manual cerebrospinal and body fluid control - each with a different colored cap: red, white, and black.

Product Description

Cell-Chex controls for red blood cell (RBC) and white blood cell (WBC) counts, urate and CPPD crystal identification and white blood cell differentiation. It is comprised of a patient-like mix of intact RBCs, urate and CPPD crystals and human white blood cells. When stained in the same manner as a patient sample, Cell-Chex can be used to control for the differentiation of granulocyte, lymphocyte and monocyte populations.

Microscopic comparison of Streck Cell-Chex WBCs on the left, showing clearly defined, uniform cells, versus Fresh Human WBCs on the right, which appear less uniform, demonstrating the stability and clarity of Streck's quality control material for cell analysis.

Features

Assayed for the 5-part WBC differential
Contains human white blood cells and CPPD crystals
30-day open-vial stability; 6-month closed-vial stability

Benefits

Validates the entire cell qualification and quantification procedure
Easily incorporates into sample preparation protocols
Long shelf life reduces the number of shipments and associated costs
Access to STATS^®, our free interlaboratory quality control program for peer group data comparison

Superior cell morphology versus competitors

Streck Cell-Chex contains biconcave RBCs and five types of morphologically distinct WBCs. Cell-Chex RBCs and WBCs are easy to differentiate and have morphology that is representative of fresh patient samples, unlike other available body fluid controls on the market.

A comparative microscopic view showing Streck Cell-Chex cells in the center panel with clear, stable RBCs and WBCs, contrasted with less uniform cells from Competitor A on the left and Competitor B on the right, highlighting Streck's superior cellular morphology for body fluid and urinalysis quality control.

Accuracy and precision of hemacytometer WBC and RBC counts

Consistent morphology of stabilized cells makes WBCs and RBCs easy to differentiate, ensuring accurate and precise counts on hemacytometers. Level 1-CC (CPPD Crystals) and Level 1-UC (Urate Crystals) have lower assayed cell counts, whereas Level 2 has higher assayed cell counts.

Microscopic images showcasing the accuracy of Streck Cell-Chex controls for body fluid and urinalysis: Cell-Chex L1-CC and L1-UC panels show clearly defined CPPD and Urte crystals and WBCs, while Cell-Chex L2 shows distinct WBCs and RBCs, highlighting consistent and reliable morphology.

5-part manual WBC differentials

Cell-Chex WBCs are stabilized human cells. When stained in the same manner as patient samples, stabilized Cell-Chex WBC morphology resembles fresh patient WBCs, enabling accurate 5-part differential identification.

Microscopic images illustrating the five types of white blood cells: Neutrophil, Lymphocyte, Monocyte, Eosinophil, and Basophil (highlighted with a white circle), demonstrating accurate morphological representation for body fluid and urinalysis quality control.

Urate and CPPD crystal identification

Cell-Chex is the only manual body fluid control that contains crystals for identification in synovial fluid samples. Real CPPD and urate crystals can be accurately differentiated based on morphology and polarized light microscopy.

Microscopic images of Streck Cell-Chex L1-CC showing Calcium Pyrophosphate crystals and Cell-Chex L1-UC displaying Monosodium Urate crystals, demonstrating the clear and distinct morphology of crystals for accurate body fluid and urinalysis quality control.

Cell-Chex

Good product, consistent and easy to use.

“Great product. We needed to start running a hemocytometer/cytocentrifuge control for manual cell counts and differentials. This is now required by our accrediting agency. We are pleased with the ease of use and assayed values that ensure our technical staff is performing testing accurately.”

SelectScience Community Member review of Cell-Chex

Cell-Chex

Good product, consistent and easy to use.

SelectScience Community Member review of Cell-Chex

Ordering Information

Description	Item Number

3 x 2.0 mL L1-UC, L1-CC, L2	212431
2 x 2.0 mL L1-CC	212429
6 x 2.0 mL L1-CC	212430
4 x 2.0 mL L1-UC, L2	212420
6 x 2.0 mL L2	212424
12 x 2.0 mL L1-UC, L2	212425
6 x 2.0 mL L1-UC	212432