Final answer:
An HbA1c level of 6.5% indicates that the client's plan of care for managing type 2 diabetes mellitus is effective. This level is below the normal threshold of 7%, reflecting good glucose control and a reduced risk of complications.
Step-by-step explanation:
The laboratory findings of a client with type 2 diabetes mellitus play a crucial role in monitoring the disease and determining the effectiveness of the care plan. An HbA1c (hemoglobin A1c) level is a significant indicator of long-term glucose control, reflecting average blood glucose levels over the past 4 months. For individuals with diabetes, maintaining an HbA1c level close to 7% is beneficial in delaying or preventing complications.
Among the choices provided:
- Serum creatinine of 1.5 mg/dL and BUN of 25 mg/dL are both elevated levels, indicating potential issues with renal function, which can be a complication of diabetes.
- A pre-meal blood glucose of 145 mg/dL is higher than the desirable range of 70 to 130 mg/dL for individuals with diabetes.
- An HbA1c of 6.5% is below the normal threshold of 7%, suggesting that the client's plan of care is effective in achieving tight glucose control, thereby reducing the risk of long-term complications.
Therefore, the correct answer is C) HbA1c 6.5%, as it indicates effective diabetes management according to the plan of care.