Chek-Stix Urinalysis Quality Control Strips

Chek-Stix from Siemens are quality control test strips built for one job: verifying that your urinalysis reagent strips and tablets are reading accurately before you trust them with patient samples. Any lab running routine urinalysis needs a documented QC process, and Chek-Stix give you a reliable, reproducible way to confirm your reagent strips are performing within expected limits.

Unlike a patient sample, Chek-Stix deliver a known, controlled response when reconstituted in deionized water. Drop one in, follow the timing, and dip your reagent strip into the resulting solution — the readout should fall within the expected range for that control level. It's the simplest way to catch a compromised lot, an expired bottle, or a strip exposed to moisture or heat before those problems reach a patient result.

This collection carries the strips your QC log actually calls for. The Siemens Chek-Stix Positive Level Control (25 strips, 10310482) is used to confirm your reagent strips detect analytes when they should be present. The Siemens Chek-Stix Combo Positive/Negative Level (50 strips, 10310483) covers both ends — verifying accurate readings across positive and negative controls in a single bottle, which most labs prefer for complete daily or lot-verification checks.

These controls are formulated specifically for Siemens reagent strips and urinalysis tablets, so results stay consistent with the system you're already running. Store the bottles tightly capped and follow the reconstitution timing on the insert — the reproducibility depends on it.

If you're stocking a full urinalysis station, pair your controls with the reagent strips they verify. Explore Uri-Chek urinalysis strips and browse related quality-control lines like Sure-Chek to keep your testing workflow complete and audit-ready.