What are the normal Schirmer test values for healthy dogs compared with dogs with EDED?

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Study for the ACVIM Small Animal Internal Medicine Exam to enhance your veterinary knowledge. Prepare with flashcards and multiple-choice questions, featuring hints and explanations. Ensure success in your exam journey!

Multiple Choice

What are the normal Schirmer test values for healthy dogs compared with dogs with EDED?

Explanation:
Schirmer tear test quantifies aqueous tear production, and in dogs the normal range is roughly 15–25 mm/min. The data show about 22.8 mm/min in healthy dogs and 22.7 mm/min in dogs with EDED—these values are essentially the same and both comfortably within the normal range. This means EDED does not reduce lacrimal tear production as measured by the Schirmer test; tear volume is preserved in both groups. The small difference you might see between groups falls within test variability and does not indicate a meaningful Change in tear production.

Schirmer tear test quantifies aqueous tear production, and in dogs the normal range is roughly 15–25 mm/min. The data show about 22.8 mm/min in healthy dogs and 22.7 mm/min in dogs with EDED—these values are essentially the same and both comfortably within the normal range. This means EDED does not reduce lacrimal tear production as measured by the Schirmer test; tear volume is preserved in both groups. The small difference you might see between groups falls within test variability and does not indicate a meaningful Change in tear production.

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