Canadian Society for Medical Laboratory Science (CSMLS) Practice Exam

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What is dehydration?

Process of adding water
Removal of water
Loss of water
Storing of water

The correct answer is: Removal of water

Dehydration is best defined as the removal of water from a substance or system. This process can occur in various biological and chemical contexts, such as when moisture is extracted from food during preservation or when cells lose water due to various physiological conditions. In laboratory settings, understanding dehydration is crucial as it affects sample integrity, chemical reactions, and biological processes. The concepts related to the other options, such as adding water or storing water, involve hydration processes, which are the opposite of dehydration. Loss of water, while similar in meaning, does not encompass the systematic removal process implied by the term 'dehydration.' Storing water goes against the concept of dehydration, which emphasizes the absence or removal of water. Thus, calling dehydration the removal of water captures its essence in scientific terms.