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Module UBF-02 · Version 1.0

Dipstick Testing: What Each Pad Is Actually Detecting

A urine reagent strip carries nine or ten independent reagent pads, each running its own chemistry with its own target, timing, and limits. The reaction principle behind each common pad separates direct detection from surrogate detection, and timing, lighting, storage, and specimen mixing are analytical controls rather than housekeeping. A guided panel shows how a reactive pad is correlated with microscopy before anything is escalated.

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Who this module is for

Clinical laboratory scientists and students performing or supervising manual or automated urine reagent-strip testing.

Learning objectives

  • Match each common reagent pad with its reaction principle and primary target
  • Distinguish direct detection from surrogate detection across the panel
  • Recognize timing, color, lighting, strip storage, and specimen mixing as analytical controls that affect whether a pad result is interpretable

How completion works

Mark every required section done and answer every knowledge check in those sections correctly. The final save completes the module automatically.

Sources

11 sources

  1. 1. Siemens Healthcare Diagnostics. Multistix 10 SG, Multistix 9, Multistix 9 SG, Multistix 8 SG, Multistix 7, Multistix, and Labstix Reagent Strips: Instructions for Use, document 11306391 Rev. A, July 2017. https://doclib.siemens-healthineers.com/rest/v1/view?document-id=786910.

    Source note · manufacturer labeling

  2. 2. Centers for Medicare & Medicaid Services. 42 CFR 493.1256, Standard: Control procedures. https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-G/part-493/subpart-K/section-493.1256.

    Source note · federal guidance

  3. 3. Centers for Medicare & Medicaid Services. 42 CFR 493.1211, Standard: Procedure manual. https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-G/part-493/subpart-K/section-493.1211.

    Source note · federal guidance

  4. 4. Clinical and Laboratory Standards Institute. Processes for the Collection of Urine Specimens, CLSI guideline PRE05, 1st ed, 2024. https://clsi.org/shop/standards/pre05/.

    Source note · consensus standard

  5. 5. Clinical and Laboratory Standards Institute. Statistical Quality Control for Quantitative Measurement Procedures: Principles and Definitions, CLSI guideline C24, 4th ed, 2016. https://clsi.org/shop/standards/c24/.

    Source note · consensus standard

  6. 6. Roxe DM. Urinalysis. In: Walker HK, Hall WD, Hurst JW, editors. Clinical Methods: The History, Physical, and Laboratory Examinations. 3rd ed. Butterworths; 1990. https://www.ncbi.nlm.nih.gov/books/NBK302/.

    Source note · peer-reviewed literature

  7. 7. Queremel Milani DA, Jialal I. Urinalysis. In: StatPearls. StatPearls Publishing; updated 2023. https://www.ncbi.nlm.nih.gov/books/NBK557685/.

    Source note · peer-reviewed literature

  8. 8. College of American Pathologists. Urinalysis Checklist, URN.24320 QC - Waived Tests (Phase II). CAP Accreditation Program, 12.09.2025 edition.

    Source note · accreditation standard

  9. 9. College of American Pathologists. Urinalysis Checklist, URN.24330 QC Corrective Action - Waived Tests (Phase II). CAP Accreditation Program, 12.09.2025 edition.

    Source note · accreditation standard

  10. 10. College of American Pathologists. Urinalysis Checklist, URN.31250 Erroneous Dipstick Reader Results (Phase I). CAP Accreditation Program, 12.09.2025 edition.

    Source note · accreditation standard

  11. 11. College of American Pathologists. Urinalysis Checklist, URN.22300 Urine Specimen Examination (Phase II). CAP Accreditation Program, 12.09.2025 edition.

    Source note · accreditation standard