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Under what circumstances does the message: MSC > TSC appears on the screen of the SQA-V?

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Under what circumstances does the message: MSC > TSC appears on the screen of the SQA-V?

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Background: It is helpful to know how the SQA-V technology works in order to understand why this message occurs: The SQA-V technology is based on a two-channel electro-optical system. One channel measures concentration (TSC) and the other channel measures motility parameters (MSC, PMSC, percent motility, velocity). These measurements are based upon different principles: • The SQA-V measures TSC based upon the principle of light absorption by sperm cells and seminal plasma. What happens is a specific wavelength of light is emitted by the SQA-V. The sperm cells absorb a much greater amount of this light compared to the amount absorbed by the seminal plasma. This information is processed electronically and read by the SQA-V algorithm in order to report TSC. • The SQA-V measures motility based upon the principle of light disturbance. What happens is a constant beam of light is emitted by the SQA-V. As spermatozoa move through this light beam, disturbances or interruptions in the light beam

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