A1C testing for diabetes is recommended as early as age 35. The following chart outlines normal blood sugar levels, as well as ranges that are consistent with prediabetes and diabetes. These ...

This test may require you to fast for at least 8 hours before your blood is drawn, depending on the instructions of your doctor and what the test is measuring. See our chart for normal results.

Use this blood pressure chart to interpret your blood pressure readings and monitor this important heart health metric from ...

normal levels for a creatinine blood test are: However, what's considered normal can vary based on a person's size, muscle mass, age, and race. Therefore, "patients should inquire with their ...