According to the Mayo Clinic, doctors may use other tests to diagnose diabetes. For example, they may conduct a fasting blood glucose test, which is a blood glucose test done after a night of fasting. While a fasting blood sugar level of less than 100 milligrams per deciliter (mg/dL) is normal, one that is between 100 to 125 mg/dL signals prediabetes, and a reading that reaches 126 mg/dL on two separate occasions means you have diabetes. 

Anteroposterior x-ray from a 28-year old woman who presented with congestive heart failure secondary to her chronic hypertension, or high blood pressure. The enlarged cardiac silhouette on this image is due to congestive heart failure due to the effects of chronic high blood pressure on the left ventricle. The heart then becomes enlarged, and fluid accumulates in the lungs, known as pulmonary congestion.
Adapted from:  Chobanian AV, Bakris GL, Black HR, et al, and the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure; National Heart, Lung, and Blood Institute; National High Blood Pressure Education Program Coordinating Committee. Seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. Hypertension. Dec 2003;42(6):1206-52. [2]
Historically the treatment for what was called the "hard pulse disease" consisted in reducing the quantity of blood by bloodletting or the application of leeches.[152] This was advocated by The Yellow Emperor of China, Cornelius Celsus, Galen, and Hippocrates.[152] The therapeutic approach for the treatment of hard pulse disease included changes in lifestyle (staying away from anger and sexual intercourse) and dietary program for patients (avoiding the consumption of wine, meat, and pastries, reducing the volume of food in a meal, maintaining a low-energy diet and the dietary usage of spinach and vinegar).
Perform a set of an exercise, follow it immediately with a short bout of moderate-intensity aerobics, and then repeat for another couple sets. For example, you may perform a set of leg presses, go straight to a 30-second set of jumping jacks, go back to a set of leg presses, then to jumping jacks, etc. Once you perform three sets of an exercise, move to the next exercise as quickly as possible. On the downside, this form of MRT has the greatest potential to lead to overtraining, so use it judiciously!
Metabolic syndrome (also known as metabolic syndrome X) is a grouping of cardiac risk factors that result from insulin resistance (when the body's tissues do not respond normally to insulin). A person with metabolic syndrome has a greatly increased risk of developing type 2 diabetes, cardiovascular disease and premature death. In fact, another name for metabolic syndrome is pre-diabetes.
Insulin resistance. Insulin is a hormone that helps your body use glucose -- a simple sugar made from the food you eat -- as energy. In people with insulin resistance, the insulin doesn't work as well, so your body keeps making more and more of it to cope with the rising level of glucose. Eventually, this can lead to diabetes. Insulin resistance is closely connected to having excess weight in the belly.
Ambulatory blood pressure monitoring can be done by using at-home devices that measure your blood pressure at periodic increments throughout a 24-hour or 48-hour time period. This provides your medical team with an average blood pressure reading that is believed to be more accurate than one taken at the doctor's office. Accumulating evidence supports the reliability of this approach.
Hypertension is rarely accompanied by symptoms, and its identification is usually through screening, or when seeking healthcare for an unrelated problem. Some people with high blood pressure report headaches (particularly at the back of the head and in the morning), as well as lightheadedness, vertigo, tinnitus (buzzing or hissing in the ears), altered vision or fainting episodes.[20] These symptoms, however, might be related to associated anxiety rather than the high blood pressure itself.[21]