What is a common effect of glucocorticoids?

Glucocorticoids are a class of steroid hormones that play a crucial role in the regulation of various physiological processes. One of their well-known effects is the elevation of blood sugar levels, which occurs through several mechanisms. They promote gluconeogenesis, a process where the liver converts non-carbohydrate substrates into glucose. Additionally, glucocorticoids can inhibit the action of insulin, the hormone responsible for lowering blood sugar levels, leading to increased glucose levels in the bloodstream.

This effect is particularly important in the context of the body's response to stress, as higher levels of glucose provide the necessary energy to manage stress-related demands. Thus, when glucocorticoids are administered or are present in the body due to stress, the increase in blood sugar levels is a significant and expected outcome, making the correct choice clear.