Cassette vs Dipstick (Strip) Test
Direct answer: A cassette encloses the test strip in a plastic housing for hygienic, labeled sample handling; a dipstick/strip is a bare test strip that is dipped into the sample. Both use the same lateral-flow chemistry — the difference is format and cost.
Comparison table
| Cassette | Dipstick / Strip | |
|---|---|---|
| Format | Enclosed plastic housing | Bare strip |
| Sample handling | Drop into well | Dip into sample |
| Hygiene / safety | Higher (enclosed) | Lower (open strip) |
| Labeling | Printable surface | Limited |
| Cost | Higher | Lower |
| Typical use | Clinical / professional | High-volume, bulk, retail |
What each format is
- Cassette: the strip is sealed inside plastic with a sample well and result window — better for infectious samples and professional labeling.
- Dipstick: the strip is exposed and dipped directly into a specimen container — cheapest and fastest for bulk use.
Strengths
- Cassette: containment, clear labeling, professional presentation.
- Dipstick: lowest cost, minimal packaging, high-volume throughput.
Limitations
- Cassette: higher cost and packaging weight.
- Dipstick: open sample exposure, no labeling surface, easier to mishandle.
Specimen considerations
For urine and liquid specimens, dipsticks are common; for blood, swab or potentially infectious samples, cassettes are preferred for containment.
Procurement considerations
Clinics typically buy cassettes; retail and high-volume screening programs favor strips for cost. Both can be private-labeled.
Related pages
Which test to choose
Choose a cassette for clinical/professional use (containment, labeling); choose a dipstick/strip for high-volume bulk and retail at the lowest cost.
Last reviewed: 2026-09-12