A client diagnosed with Type 2 diabetes nine months ago, returns for a 3-month follow-up visit. Which of the following laboratory tests would provide the best information about the client's adherence to their diet, exercise, and medication regimen?

Rationale: A. CBC evaluates white blood cells, red blood cells, and platelets, helping detect infection, anemia, or bleeding disorders. It does not provide information about long-term glycemic control or adherence to diabetes management. B. LFTs assess hepatic enzyme levels (AST, ALT, bilirubin) and liver health. While some diabetes medications can affect liver function, these tests do not reflect glucose control or adherence to diet, exercise, or medications. C. Hemoglobin A1c reflects average blood glucose levels over the previous 2–3 months, making it the most reliable indicator of long-term glycemic control. It integrates the effects of diet, exercise, and adherence to prescribed medications, providing a clear picture of how well the client is managing Type 2 diabetes. A target HbA1c is typically <7% for most adults, though individualized goals may vary. D. Urinalysis may detect glucose, protein, ketones, or infection, but it only provides a snapshot at a single point in time. It cannot accurately assess long-term adherence or average glucose levels.