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WITNESS® LH Luteinizing Hormone Test

WITNESS® LH is a convenient, easy way to pinpoint the optimum time for canine breeding

WITNESS® LH is a convenient, easy-to-use, in-clinic test that is designed to pinpoint the optimum time for canine and feline breeding by identifying the day of the luteinizing hormone (LH) surge. WITNESS LH can also be used to determine if a queen or bitch is intact.

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    • No refrigeration: WITNESS LH has a 18-month shelf life at room temperature.
    • No complicated mixing: RIM™ (Rapid Immuno Migration) technology allows for a one-step process, you don’t lose time waiting to mix and monitor. Plus, you only need 4 drops of serum.
    • Fast: reliable results in approximately 20 minutes, so veterinarians can give their clients the immediate test results they want. Determining the LH surge—perhaps the most critical factor in reproductive efficiency—provides ant accurate means of canine ovulation timing.
    • Simple-to-understand results need no complex interpretation.
    • Backed by Zoetis Service and Support:
      • Same level of customer support you’re accustomed to receiving
      • Available in 6-test kits
  • Sample information:

    Collect the blood sample in a plain (red top) vacutainer or serum separator tube. Allow the blood to clot, and separate the serum by centrifugation.

    Instructions for use:

    1. Remove test device from foil pouch by tearing at the notch. Place the device on a flat level surface at room temperature.
    2. Draw some serum up into the provided pipet. Hold the pipet perpendicular to the device and add 4 drops of serum to the Serum Well “1”.
    3. Allow the test device to sit undisturbed for 20 minutes.
    4. Read results at 20 minutes. Reading results prior to or beyond the 20 minute test interval will invalidate results.
    5. *It is important to use the pipette provided to ensure enough sample is dropped into the well for accurate results.


    WITNESS LH Sell Sheet

    • Do not use components after expiration date.
    • Refrigeration not required. Store the test kit at 2˚ to 25˚C (35˚ to 77˚F). Do not subject to extreme temperatures.
    • Do not open the foil pouch until ready to perform the test.
    • Avoid touching or damaging membrane at windows 1, 2 or 3.
    • Keep the device flat during testing. Do not disturb the device while the test is being conducted.
    • Reading results before or after the 20-minute test interval will invalidate results.
    • For veterinary use only.



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