Final answer:
A glycosylated hemoglobin test result of 5% would indicate that the client's blood glucose level has been well-controlled.
Step-by-step explanation:
The nurse would determine that the client's blood glucose level has been well-controlled if the glycosylated hemoglobin test results indicate a value of 5%. The normal level for glycosylated hemoglobin (HbA1c) is less than 7%. A result of 5% would suggest that the client's average blood glucose level over the past 4 months has been within the target range and indicates good control. A result of 7% would also be considered acceptable, although not as well-controlled as a result of 5%.