Plasma Cortisol Levels Are Scheduled to Be Drawn Between 0800

question 42

Multiple Choice

Plasma cortisol levels are scheduled to be drawn between 0800 and 1000 because:

• A) patients must be in a basal state.
• B) patients must not be fasting.
• C) cortisol exhibits diurnal variation.
• D) cortisol is only produced during the morning.

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