Final answer:
After an abnormal FPG result, the next step is a GTT to confirm diabetes mellitus. Upon diagnosis, further tests like ITT and GuTT determine the diabetes type.
Step-by-step explanation:
If the FPG (Fasting Plasma Glucose) result is abnormal, it suggests that the patient may have diabetes. The next step would be to perform additional tests to confirm the diagnosis and determine the type of diabetes. In this case, a glucose tolerance test (GTT) may be ordered, which measures the body's ability to metabolize glucose. If the GTT is positive, further investigations such as an Insulin Tolerance Test (ITT) or Glucagon Tolerance Test (GuTT) may be conducted to determine whether the patient has insulin-dependent or insulin-independent diabetes.
If the Fasting Plasma Glucose (FPG) result is abnormal, indicating potential diabetes mellitus, the next step is generally to perform a Glucose Tolerance Test (GTT). If the GTT also indicates hyperglycemia, a diagnosis of diabetes mellitus may be confirmed. Following the confirmation, additional tests such as the Insulin Tolerance Test (ITT) and the Glucagon Tolerance Test (GuTT) can help determine whether the diabetes is insulin dependent or independent, which is crucial for creating an effective treatment plan.
The recommended treatment based on a preliminary diagnosis of diabetes mellitus typically includes lifestyle modifications, dietary changes, and potentially medication or insulin therapy, depending on whether the diabetes is type 1 or type 2. Doctors may recommend blood sugar monitoring along with these treatments.