What laboratory finding indicates a need to revise the care plan for a client with diabetes mellitus?

An HbA1c of 10% indicates that the client's blood glucose levels have been poorly controlled over the previous two to three months. This level suggests that the client may be at an increased risk for diabetes-related complications, such as neuropathy, retinopathy, and cardiovascular issues. Typically, for individuals with diabetes, a target HbA1c is usually below 7% for optimal management of the condition. When a patient's HbA1c is significantly above this target, it is crucial to revise the care plan, which may include changes in medication, nutrition, lifestyle interventions, or education to improve glycemic control and reduce the risk of complications.

The other laboratory findings do not necessarily indicate a need to revise the care plan as urgently. A fasting blood glucose of 90 mg/dL is within normal ranges and suggests good control. A triglyceride level of 200 mg/dL, while it may warrant monitoring and lifestyle counseling, does not indicate a critical need for immediate changes in diabetes management. A random blood glucose of 140 mg/dL, though elevated, does not typically warrant a revision of the care plan unless it is a consistent finding or accompanied by symptoms of hyperglycemia.