Which Diagnostic Test Is the Most Helpful in Distinguishing Primary

question 21

Multiple Choice

Which diagnostic test is the most helpful in distinguishing primary from secondary adrenocortical insufficiency?

• A)Magnetic resonance imaging (MRI)
• B)A computed tomography (CT)scan
• C)Cosyntropin (Cortrosyn)
• D)Dexamethasone (Decadron)

---

Definitions:

Exploitation Competition

A form of competition where organisms indirectly interact with each other by consuming shared resources.

Limited Resources

A situation in an ecosystem where the availability of resources such as food, water, or territory is insufficient to fulfill the needs of all organisms competing for them.

Consumption Overpopulation

A situation where the level of consumption by a population exceeds the ecosystem's carrying capacity, leading to environmental degradation.

Interference Competition

A form of competition where individuals directly interact and inhibit each other's access to resources, often through aggressive or exclusionary behavior.