The Physician Has Ordered a Serum Cortisol Level to Rule

question 5

Multiple Choice

The physician has ordered a serum cortisol level to rule out adrenal dysfunction in a patient who is a night security guard who works from 2300 hours to 0700 hours and normally sleeps from 0800 hours to 1600 hours.To ensure the most reliable test results,when does the nurse arrange the blood specimen to be drawn?

• A) At 0300 hours
• B) At 2300 hours
• C) In the early morning
• D) In the late afternoon

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Definitions:

Z-statistic

A measure used in statistics to quantify the deviation of a data point or a group of data points from the mean, expressed in terms of standard deviations.

Two-tailed Test

A statistical test that allows for the exploration of relationships in both directions, enabling the detection of significant differences regardless of the direction.

Significant

Pertaining to results in statistical analysis, significant means the findings are unlikely to have occurred by chance and indicate a real effect or relationship.

Z-statistic

A statistical measure that quantifies the difference between a sample statistic and its population parameter, measured in units of the standard deviation.