Bayer Keto-Diastix Urinalysis Reagent Strips (50 Tests)

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Bayer Keto-Diastix | Urinalysis Reagent Strips (50 Tests)

Bayer Keto-Diastix reagent strips provide quick, at-home urine screening for ketones and glucose in a single strip. Designed for people who need convenient sick-day checks, low-carb/fasting monitoring, or day-to-day diabetes self-care, each strip gives semi-quantitative results in seconds using an easy color change you compare to the bottle chart. No meter, batteries, or special equipment required. The compact vial holds 50 single-use strips for reliable spot-testing at home, work, school, or travel.

Active Reagents / How It Works

Ketone test pad: reacts primarily with acetoacetic acid via the nitroprusside reaction (e.g., sodium nitroprusside) to produce a color change proportional to ketone level.
Glucose test pad: glucose oxidase + peroxidase enzyme system with a chromogen (e.g., iodide dye) that changes color in the presence of urinary glucose.
Includes buffers and stabilizers on an absorbent pad; results are read visually against the printed color scale.

Reasons to Use

Sick-day checks when unwell, feverish, or dehydrated to screen for ketones.
Diabetes self-management: quick urine check for glucose spill when a blood glucose meter isn’t available.
Low-carb/fasting programs: confirm presence of ketones (note: reflects acetoacetate in urine, not blood β-hydroxybutyrate).
Travel/emergencies: lightweight, no electronics, easy to use anywhere.

Reasons Not to Use

Not for diagnosing diabetes or medical conditions; laboratory testing may be required for decisions.
Do not rely on urine ketone results alone to manage suspected diabetic ketoacidosis (DKA)—seek urgent medical care for nausea/vomiting, abdominal pain, rapid breathing, fruity breath, confusion or very high blood glucose.
Medication and supplement interferences (e.g., high-dose vitamin C can reduce glucose pad reactivity; some drugs may affect ketone color).
Results may be unreliable with old/expired strips, improper storage, contaminated or very old urine samples.

Advantages

Two tests on one strip (ketone + glucose).
Fast: results in about a minute with simple color matching.
No meter or battery required; ideal backup for travel.
50 individually capped strips in a moisture-protected vial.

Disadvantages

Semi-quantitative/visual result—subjective color matching.
Detects acetoacetate only (not β-hydroxybutyrate), so ketone levels may not mirror blood readings during illness.
Susceptible to interferences (ascorbic acid, some drugs) and user error (timing, lighting).
Fresh urine required; standing samples can give misleading results.

Frequently Asked Questions (FAQ)

Q: How do I use a strip correctly?
A: Collect a fresh urine sample in a clean, dry container. Dip both pads briefly, remove immediately, and tap edge to remove excess. Hold strip horizontally. Read glucose pad at the time printed on your vial (often ~30 seconds) and ketone pad at its specified time (often ~40–60 seconds). Compare each pad to the color chart on the label under good light.

Q: When should I test?
A: Test ketones when you’re unwell, fasting, on very low-carb intake, or when blood glucose is elevated as advised by your care team. Morning urine often shows the highest ketone reading. Test glucose if you suspect hyperglycaemia or as part of your routine plan.

Q: What do the results mean?
A: Colors correspond to negative, trace, small, moderate, large ranges on the vial. Persistently positive ketones or high glucose should prompt treatment per your plan and/or medical review.

Q: Do these strips replace blood glucose or blood ketone meters?
A: No. They are screening tools. Blood meters provide quantitative results and detect β-hydroxybutyrate (for ketones) which urine strips do not.

Q: Any common causes of inaccurate results?
A: Expired strips, moisture exposure, improper timing, reading under poor light, old urine, high vitamin C (possible false-negative glucose), and some medications can skew results.

Q: How should I store the strips?
A: Keep the cap tightly closed. Store at room temperature, dry, away from heat/humidity and direct light. Do not refrigerate or freeze. Do not remove the desiccant. Do not transfer to another container.

Q: How long are they good after opening?
A: Use by the expiry date on the vial; many users also follow an in-use period (e.g., a few months) once opened—check your label and discard if colors on the chart or pads look faded or the timing seems off.

Q: Can vitamin C affect results?
A: Yes, ascorbic acid can reduce color development on the glucose pad. If you take high-dose vitamin C, interpret glucose results cautiously.

Q: What if I see large ketones?
A: Follow your sick-day plan and seek urgent medical advice if ketones remain high, you feel unwell, or you have symptoms suggestive of DKA.

Q: Are they suitable for pregnancy?
A: Discuss with your clinician, particularly for gestational diabetes or concerns about ketonuria.

How to Get the Best Results (Quick Tips)

Use fresh urine and read at the exact times listed on the vial.
Match colors in bright, natural light.
Record results with date/time and symptoms to share with your clinician.
Replace strips if the desiccant is saturated, the vial was left uncapped, or past expiry.

ALWAYS READ THE LABEL ON THE PRODUCT AND FOLLOW THE DIRECTIONS FOR USE UNLESS DIRECTED BY YOUR HEALTHCARE PROFESSIONAL.

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(Product SKU 440841)