Clinical Decision Support System

Since the hemoglobin A1C is not affected by the fluctuations that can occur with daily glucose monitoring, it is an extremely important test for those with diabetes and is recommended every three to six months by the American Diabetes Association.
Produced by the adrenal glands, DHEA levels peak in the 20s and, often, plummet throughout the decades. The test can predict heart disease risk in people with and without diabetes. Studies suggest that having too little DHEA can negatively impact erectile function, libido, immune function, wound healing, bone density, abdominal fat distribution and mood.Hemoglobin A1C
The hemoglobin A1C provides an accurate snapshot of a person's blood sugar control during the previous two to three months. Low levels of this hormone are common as we age. Why? Maintaining optimal hemoglobin A1C levels can help keep people with the disease-free from diabetes complications.
DHEA
Some call dehydroepiandrosterone (DHEA) the "antiaging hormone".

So, the tests your surgeon orders may be different from the tests described here, or you may have more tests than the average patient. If you need surgery, or your healthcare provider thinks you may need surgery, different tests may be ordered to determine the exact nature of the problem as well as your general state of health. Pre-surgery testing is very individualized.
For example, plastic surgeons may test for nicotine prior to surgery. These tests range from body scans to blood tests, from the invasive to the barely noticeable.
Every surgery is different, just as every patient is different. This is because smoking and other types of nicotine use are known to increase scarring and delay wound healing.1 If you test positive for nicotine prior to plastic surgery, the surgeon may not perform the procedure.