How to use the CheckFor UTI test
Walkthrough of opening the pouch, sampling urine, timing, and handling the strip.
Over-the-counter · Urine test strip
Screen for UTI signs in minutes — at home.
CheckFor UTI detects leukocytes (white blood cells) and nitrite in urine to help screen for urinary tract infection. Clear results at two minutes. Not for sale online — find it at a store near you.
For screening only. Always follow the Instructions for Use and speak with a healthcare professional about symptoms or treatment.
- ✓ Read results at 2 minutes
- ✓ Leukocyte & nitrite pads
- ✓ Use midstream or cup method
- ✓ Color chart on foil pouch
What the test does
The CheckFor UTI strip is a firm plastic strip with two test pads. It qualitatively detects leukocytes and nitrite in human urine as an aid in screening for UTI. It is intended for near-patient and over-the-counter home use.
Download instructions (PDF)
What we look for
- LEU — Leukocytes (LEU) — white blood cells that can appear with infection or inflammation.
- NIT — Nitrite (NIT) — some bacteria convert nitrate to nitrite; a positive can suggest certain UTIs.
Read each pad at 120 seconds (2 minutes). Do not read after 180 seconds (3 minutes). Match pad colors to the chart on your foil pouch in bright, natural light.
How to use the test
Always read the full Instructions for Use in your package before testing.
- 1
Open the pouch
Remove the strip when you are ready. Keep the pouch — the color chart is printed on it. Do not use if the pouch is torn or damaged.
- 2
Apply urine to the pads
Urinate on the pads for 1–2 seconds midstream, or collect urine in a clean cup and dip the pads for 1–2 seconds. Ensure pads are fully wet.
- 3
Remove excess urine
Touch the edge of the strip to absorbent paper to wick excess. Lay the strip pads-up and start your timer immediately.
- 4
Read at 2 minutes
Compare each pad to the matching color blocks on the foil pouch. Hold the strip close for an accurate match.
Step-by-step videos
Short guides from our team — same titles you will see on YouTube.
How to interpret the results
How to read leukocyte and nitrite pads against the color chart and what to do next.
Understanding your result
Interpretation is always by comparing pads to the foil pouch chart. The leaflet in your box explains combinations in detail. Below is a simplified overview — not a substitute for the IFU or medical advice.
Both negative
No sign of UTI detected on this screen. If you still have symptoms, contact a clinician — some UTIs may not be detected.
Positive findings
Certain combinations suggest signs of UTI. The IFU tells you exactly when to repeat the test or seek care immediately. Do not delay speaking with a healthcare professional if you feel unwell.
Common questions
Do I need first-morning urine?
You can test any time, but first-morning urine often has the highest concentration if infection is present. Avoid testing during menstruation.
Can food, alcohol, or medicines affect results?
Some drugs and supplements change urine color, which can make color matching harder. Large amounts of vitamin C may cause false negatives. Do not use while taking antibiotics. When in doubt, ask your clinician.
What if my result looks abnormal?
Contact your physician or healthcare professional. Diagnosis and treatment should not be based on a single test.
Where can I buy CheckFor UTI?
This product is sold in retail stores only. Use our store locator to find a location near you — we do not sell through this website.
Important
For in vitro diagnostic use only. Human urine only. Not for internal use. Do not use after expiry. Keep out of reach of children. Individuals with color-vision limitations may need assistance reading results. Store dry at 15–30°C (59–86°F); do not refrigerate.
Find a store
This product is sold in retail stores only. Use our store locator to find a location near you — we do not sell through this website.
Find a store