A patient arrives at the clinic for a FBS. He tells you he just ate his breakfast. What is your best course of action?

Do not perform the test and reschedule.

A fasting blood sugar test requires the patient to fast for at least 8 hours before the test. This is to ensure that the blood sugar level is not affected by food intake. If the patient has just eaten breakfast, the blood sugar level will be elevated and the test result will not be accurate.