Question 28

An endocrine disorder with elevated cortisol levels in the blood

Cushing syndrome is specifically characterized by excessive levels of cortisol in the bloodstream, which can lead to various physiological changes and health issues.

A) An endocrine disorder with increased cholesterol and blood pressure

This option incorrectly describes Cushing syndrome. While individuals with Cushing syndrome may experience elevated blood pressure, the defining feature is not increased cholesterol, but rather high cortisol levels.

B) A disease in which the immune system attacks the nerve fibers

This option is not relevant to Cushing syndrome as it describes conditions such as multiple sclerosis. Cushing syndrome is not associated with immune system dysfunction targeting nerve fibers.

C) A disabling condition affecting the brain and spinal cord

This statement does not accurately represent Cushing syndrome. While Cushing syndrome can have neurological implications due to hormonal imbalances, it is primarily an endocrine disorder rather than a condition that directly affects the brain and spinal cord.

D) An endocrine disorder with elevated cortisol levels in the blood

This is the correct definition of Cushing syndrome, highlighting the critical aspect of elevated cortisol levels as the hallmark of the condition, leading to various health complications.

Conclusion

Cushing syndrome is definitively characterized by elevated cortisol levels in the blood, distinguishing it from other disorders described in the other options. The other choices fail to capture the essence of the condition, as they either misrepresent the hormonal aspect or describe unrelated diseases. Understanding Cushing syndrome is crucial for recognizing its symptoms and implications for health.