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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Definitions:

Fischer Projection

A two-dimensional representation of a three-dimensional organic molecule by projection, used for representing carbohydrates and amino acids.

Trichloroheptane

A type of organic compound that has a seven-carbon chain and three chlorine atoms attached to it in various positions, leading to different isomers.

Diastereomers

Stereoisomers which are non-mirror image forms and possess distinct chemical and physical properties.

Diastereomer

Stereoisomers which do not act as mirror reflections of one another.