A healthy morning blood glucose level is between 70 and 100 mg/dL, according to Mayo Clinic. Fasting numbers between 101 and 125 mg/dL are considered prediabetic. Prediabetic conditions can cause long-term damage to the heart and circulatory system.
Prediabetic patients have elevated glucose levels that are not yet high enough to indicate diabetes, and prediabetes can often occur with few or no symptoms, according to WebMD. Insulin resistance and prediabetic conditions can cause serious medical problems, such as heart disease and Type 2 diabetes. Doctors have increased preventative care to recognize and manage prediabetic conditions in an effort to reduce the onset of Type 2 diabetes and other health problems.