The diagnosis of Cushing syndrome is often based on:

A. Increased chloride levels, also known as hyperchloremia, can occur in metabolic acidosis as part of the body's attempt to balance acid-base status.

B. All of the options listed contribute to metabolic acidosis. Increased metabolic acids, decreased bicarbonate, and increased chloride levels can all be present in metabolic acidosis, making this the correct answer.

C. Increased metabolic acids, such as lactic acid or ketoacids, are a key feature of metabolic acidosis.

D. In metabolic acidosis, bicarbonate levels decrease as the body compensates by buffering excess acid with available bicarbonate.

A. Anti-inflammatory drugs do not primarily work by increasing blood flow to the tissues. While some may have vasodilatory effects, their primary function is to reduce inflammation.

B. Anti-inflammatory drugs do not directly decrease scar formation. They reduce inflammation, which may indirectly help prevent excessive scarring in tissues affected by chronic inflammation, but this is not their primary action.

C. The main action of anti-inflammatory drugs, such as nonsteroidal anti-inflammatory drugs (NSAIDs) or corticosteroids, is to block the chemical mediators of inflammation, such as prostaglandins. This reduces pain, swelling, and other symptoms of inflammation.

D. Anti-inflammatory drugs do not directly enhance the body's immune system. In fact, some, like corticosteroids, may suppress immune responses to reduce inflammation.