Using Synthetic Urine as a Negative Control: A Lab Guide
Laboratories, nursing and med-tech programs, and diagnostic device manufacturers all need urine samples that behave predictably. Pooled human samples introduce variability, biohazard handling, and consent paperwork. A batch-tested synthetic substitute removes all three. Here is how Upass fits into lab workflows.
Four common lab uses
- Dipstick validation: confirming reagent strips read pH, specific gravity, creatinine, and protein correctly against a known-negative sample
- Reagent and instrument QC: a stable baseline for daily quality control runs
- Calibration: a consistent fluid for urinalysis analyzers and point-of-care devices
- Training: risk-free, sterile practice material for sample handling and urinalysis technique
Why traceability matters
QA documentation needs a lot number. Every Upass box carries a printed batch date tied to that run's test record for urea, creatinine, pH, and specific gravity, the profile explained in our chemistry article. Sealed kits hold specification for 2 years at room temperature, so a case ordered today supports a full academic year.
Practical notes
- The 3oz volume fills standard sample cups with margin
- Premixed formula; no reconstitution step to introduce error
- Each kit includes a temperature strip, useful when protocols call for body-temperature samples
Ordering for institutions
Single kits and multi-packs ship same day from the lab-grade collection. For standing orders, case quantities, and spec sheets, contact info@upassurine.com through the wholesale program.