The rationale for divided prednisone dosing in adrenal insufficiency is to mimic what physiological pattern?

The rationale for divided prednisone dosing in adrenal insufficiency is to mimic what physiological pattern?

• A. To Mimic Normal Diurnal Cortisol Production
• B. To Maximize Peak Plasma Concentration
• C. To Minimize Gastric Irritation
• D. To Avoid Weight Gain

Answer: (A)

The key idea is that cortisol follows a daily, or diurnal, rhythm. It normally rises in the early morning to help you wake up, then declines over the day and is lowest at night. Dividing prednisone doses to morning plus a smaller afternoon dose is meant to reproduce that pattern so replacement activity matches the body's natural needs—providing a morning boost to support waking energy and metabolic regulation, while avoiding excessively high levels later that could cause sleep disturbance or other effects. Giving one large dose would not mimic this natural rhythm and could lead to a mismatch between replacement and the body's needs. The other options (maximizing a single peak, reducing gastric irritation, or preventing weight gain) are not the primary reason for divided dosing.

The key idea is that cortisol follows a daily, or diurnal, rhythm. It normally rises in the early morning to help you wake up, then declines over the day and is lowest at night. Dividing prednisone doses to morning plus a smaller afternoon dose is meant to reproduce that pattern so replacement activity matches the body's natural needs—providing a morning boost to support waking energy and metabolic regulation, while avoiding excessively high levels later that could cause sleep disturbance or other effects. Giving one large dose would not mimic this natural rhythm and could lead to a mismatch between replacement and the body's needs. The other options (maximizing a single peak, reducing gastric irritation, or preventing weight gain) are not the primary reason for divided dosing.