Canadian Society for Medical Laboratory Science (CSMLS) Practice Exam

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Which statement about automatic tissue processors is false?

Machine can be programmed to delay processing
Reagents do not become contaminated and therefore do not need changing
Large numbers of specimens can be processed at one time
Heat and or vacuum may be employed in processors

The correct answer is: Reagents do not become contaminated and therefore do not need changing

The assertion that reagents do not become contaminated and therefore do not need changing is incorrect. In reality, reagents in automatic tissue processors can become contaminated over time due to the processing of multiple specimens. Contamination may occur from tissue remnants or other substances that affect the quality of the processed samples. To ensure optimal results and preserve the integrity of the samples, it is essential to routinely change the reagents used in the processing cycles. On the other hand, the other statements highlight true functionalities of automatic tissue processors. They indeed can be programmed to delay processing, allowing for flexibility in processing times. Additionally, these machines can efficiently handle large volumes of specimens simultaneously, significantly improving workflow in pathology labs. The use of heat and vacuum is also a common feature in many tissue processors to enhance the penetration of the reagents and reduce processing time.