If a diabetic patient goes to an outpatient clinic for a blood test, the following indicators are usually checked: 1. fasting blood sugar and two-hour postprandial blood sugar to assess the overall situation of current blood sugar control. 2. glycosylated hemoglobin indicators are more important because they indicate the average level of blood sugar control over the past 2-3 months. 3. lipid levels, because diabetic patients are often combined with disorders of lipid metabolism, so when checking blood sugar, we should also look at the lipid levels. 4, liver and kidney function and electrolytes, because diabetic patients are prone to combined fatty liver, liver function abnormalities, some patients combined with diabetic nephropathy and renal insufficiency, and some patients may be combined with electrolyte disorders, so patients need to check the liver and kidney function and electrolytes. Therefore, the patient’s liver and kidney function and electrolyte disorders should be checked, and the patient’s treatment should be adjusted according to whether there are abnormalities in the above indicators. These are the basic tests that need to be reviewed by diabetic patients in outpatient clinics.