The term diurnal variation is associated with:

Name: The term diurnal variation is associated with:
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Quizplus · Accepted Answer

Diurnal variation refers to the natural fluctuations in levels of substances in the body over a 24-hour period. Timed collections are used to measure these changes and are often used to monitor hormones like cortisol or melatonin. Blood cultures, fasting specimens, and forensic specimens are not necessarily associated with diurnal variation.

The Term diurnal Variation Is Associated With