MDx-Chex® for Blood Culture Yeast (RUO), MDx-Chex® for Blood Culture GP (RUO) and MDx-Chex® for Blood Culture GN (RUO)
Full-process quality controls for validation of molecular assay workflows
MDx-Chex for Blood Culture Yeast (RUO), MDx-Chex for Blood Culture GP (RUO) and MDx-Chex for Blood Culture GN (RUO) are full-process molecular quality controls designed for comprehensive molecular assay workflow validation. Each control contains intact, inactivated microorganisms suspended in a stabilized, blood-like matrix of red and white blood cells and blood culture media components, making them ideal for evaluating the entire molecular testing process, from extraction to detection. Supplied in single-use vials, these controls cover multiple microbial targets, pathogens and antimicrobial resistance markers, helping labs achieve reliable performance, streamlined workflows and confident results when they matter most.
For Research Use Only. Not for use in diagnostic procedures. We recommend that you verify that control target coverage is adequate for your sample-to-results system of choice.
*See the Instructions For Use (IFU) for full target coverage.
Ordering Information
| Description | Item Number |
|---|---|
| MDx-Chex for Blood Culture Yeast (RUO) – 5 Tubes Positive Control, 5 Tubes Negative Control | 250089 |
| MDx-Chex for Blood Culture GP (RUO) – 5 Tubes Positive Control, 5 Tubes Negative Control | 250090 |
| MDx-Chex for Blood Culture GN (RUO) – 5 Tubes Control 1, 5 Tubes Control 2 | 250091 |
Order MDx-Chex for Blood Culture Yeast (RUO), MDx-Chex for Blood Culture GP (RUO) and MDx-Chex for Blood Culture GN (RUO) today
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Quick Start Guide
For detailed instructions refer to the IFU
Step 1
Vortex

Vortex room temperature MDx-Chex control tube at a high speed for 30 seconds.
Step 2
Pipette

Transfer 300 μL of the MDx-Chex control mix into the sample port and close it.
Step 3
Scan

Scan the barcode or manually enter the Control ID.
Step 4
Run

Load the cartridge into the auto selected bay or select a different bay. Verify the Control ID and select RUN.
Resources
Instructions (IFU)
Assays
- MDx-Chex for Blood Culture GN (RUO) Assay Lot 5223 2026-01-07
- MDx-Chex for Blood Culture GP (RUO) Assay Lot 5223 2026-01-07
- MDx-Chex for Blood Culture Yeast (RUO) Assay Lot 5223 2026-01-07
- MDx-Chex for Blood Culture GN (RUO) Assay Lot 5251 2026-02-04
- MDx-Chex for Blood Culture GP (RUO) Assay Lot 5251 2026-02-04
- MDx-Chex for Blood Culture Yeast (RUO) Assay Lot 5251 2026-02-04
- MDx-Chex for Blood Culture GN (RUO) Assay Lot 5279 2026-03-04
- MDx-Chex for Blood Culture GP (RUO) Assay Lot 5279 2026-03-04
- MDx-Chex for Blood Culture Yeast (RUO) Assay Lot 5279 2026-03-04
- MDx-Chex for Blood Culture GN (RUO) Assay Lot 5307 2026-04-01
- MDx-Chex for Blood Culture GP (RUO) Assay Lot 5307 2026-04-01
- MDx-Chex for Blood Culture Yeast (RUO) Assay Lot 5307 2026-04-01
Certificates
- MDx-Chex for Blood Culture GN (RUO) CoC Lot 5223 2026-01-07
- MDx-Chex for Blood Culture GP (RUO) CoC Lot 5223 2026-01-07
- MDx-Chex for Blood Culture Yeast (RUO) CoC Lot 5223 2026-01-07
- MDx-Chex for Blood Culture GN (RUO) CoC Lot 5251 2026-02-04
- MDx-Chex for Blood Culture GP (RUO) CoC Lot 5251 2026-02-04
- MDx-Chex for Blood Culture Yeast (RUO) CoC Lot 5251 2026-02-04
- MDx-Chex for Blood Culture GN (RUO) CoC Lot 5279 2026-03-04
- MDx-Chex for Blood Culture GP (RUO) CoC Lot 5279 2026-03-04
- MDx-Chex for Blood Culture Yeast (RUO) CoC Lot 5279 2026-03-04
- MDx-Chex for Blood Culture GN (RUO) CoC Lot 5307 2026-04-01
- MDx-Chex for Blood Culture GP (RUO) CoC Lot 5307 2026-04-01
- MDx-Chex for Blood Culture Yeast (RUO) CoC Lot 5307 2026-04-01
SDS
Looking for an older document? Click here for archived assays and certificates.
Molecular Products
With full-process controls and antibiotic resistance kits, Streck has the products to help you streamline your molecular diagnostics testing, aid antibiotic stewardship and ensure positive patient outcomes.

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