Behind every PCR test result and the upper respiratory infection (URI) diagnosis that follows is a sample of the highest quality — and that begins with collection.
Swabs have long been the default for URI sampling, but they come with limits: inconsistent yield, significant variability in sample collection technique, safety risks for healthcare personnel and patient discomfort among them. The MicroWash nasal lavage device changes that equation with a standardized, reproducible specimen collection method that supports high-sensitivity results and effortless PCR workflow integration.
Here are the top five questions we’ve received from laboratory professionals, answered.
Q: How does MicroWash compare to the nasal swab?
A: MicroWash is proven to outperform the nasal swab on virtually all levels:
- Sensitivity: When paired with PCR testing, MicroWash samples are up to 49% more sensitive than nasal swab samples.
- Comfort: MicroWash has a patient pain rating of 0.3/10, compared to the nasal swab at 8/10, showing significantly greater consumer acceptance.
- Depth: MicroWash reaches the entire nasopharyngeal cavity (including the upper nasal cavity, ethmoid and maxillary sinuses and the proximal frontal sinuses region), providing labs a more comprehensive sample than swabs, which often barely reach past the nostril.
- Consistency: Internal PCR validation studies show 100% specimen cellularity and a mean cycle threshold (CT) of 29.5, indicating high-quality, pathogen-rich samples.
Q: Does MicroWash fit into my lab’s existing PCR processes?
A: Yes. MicroWash’s swab-free specimen collection integrates seamlessly into your lab’s current workflows to measurably increase throughput.
Its samples come ready to be placed into PCR machines, with no additional steps and minimal training required. With this method, labs striving for greater automation can expect:
- No manual swab extraction required
- Reduced disease exposure risk for lab professionals
- Improved test sensitivity and consistency with fewer false negatives
- High throughput without increasing labor
- Timely diagnoses and public health response
- Downstream cost savings thanks to increased efficiency
Additionally, a CPT code payment pathway for MicroWash sample collection has been identified for reimbursement through both Medicare and most private insurance payers, strengthening its clinical and operational value.
Q: How much specimen does the MicroWash device collect?
A: Each use yields approximately 2 mL of sample, compared to about 0.1 mL from a typical swab — a 20x increase in volume. This ensures sufficient material for multiple tests and accurate pathogen detection.
A valid sample should exceed 0.5 mL, and visible return of saline into the specimen transport tube confirms successful collection.
Q: Is the MicroWash device airtight and leakproof?
A: Yes. The MicroWash device features a built-in flip cap that creates an airtight, leakproof seal when properly attached to the specimen transport tube — preserving sample integrity during handling and transport.
Q: Are there handling precautions for specimens collected by MicroWash?
A: When handling specimens collected by MicroWash, lab personnel should observe all universal precautions for the handling of bodily fluids. For more information, review the Occupational Safety and Health Administration bloodborne pathogens standard, 29 Code of Federal Regulations (CFR) 1910.1030.
Discover the Macro Potential of MicroWash Nasal Lavage Specimen Collection
In modern laboratory settings, MicroWash streamlines results without disrupting operations.
Discover more advantages and contact our medical experts to equip your laboratory with a swab-free solution that supports better throughput, better diagnostics and better health outcomes.
