Hypoglycemia is a condition where blood glucose levels drop below 70 mg/dL, causing symptoms like shakiness, sweating, confusion, and rapid heartbeat. It is caused by excess insulin production, medication effects, hormone imbalances, or underlying conditions like insulinoma or liver disease. The Glucose Serum test is the most important test for diagnosis because it directly measures blood glucose levels to confirm hypoglycemia.
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Hypoglycemia is caused by excess insulin production, medication side effects (especially in diabetic patients), hormone deficiencies like cortisol or growth hormone, liver disease, kidney dysfunction, or rare tumors such as insulinoma that overproduce insulin. In people with diabetes, taking too much insulin or diabetes medication without eating enough food is the most common cause. Other causes include excessive alcohol consumption, certain medications like beta-blockers or aspirin, critical illnesses affecting the liver or kidneys, and endocrine disorders like Addison disease or pituitary insufficiency.
The Glucose Serum test is the most important test for hypoglycemia because it directly measures your blood glucose level at the time of testing to confirm if your blood sugar has dropped below 70 mg/dL. To identify the underlying cause, the Insulin Fasting test and C-Peptide Serum test are essential because they measure insulin and C-peptide levels during hypoglycemic episodes to determine if excess insulin production is the problem. The Insulin Free Bioactive test provides even more specific information about the bioactive insulin immediately affecting your blood sugar. These tests together help distinguish between insulin-related hypoglycemia from an insulinoma tumor, medication effects, or other causes.
You should get tested if you experience frequent episodes of shakiness, sweating, confusion, rapid heartbeat, dizziness, or extreme hunger, especially between meals or after fasting. Testing is particularly important if you have diabetes and suspect your medication dosage needs adjustment, if you experience symptoms during exercise or at night, or if you have unexplained episodes of anxiety, irritability, or weakness that improve after eating. Anyone with repeated low blood sugar readings on home glucose monitors or a family history of insulinoma should also get comprehensive testing to identify the cause.
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What this means
Your fasting glucose level is slightly elevated, falling in the prediabetes range. This means your body is not processing sugar as efficiently as it should, which can contribute to fatigue, increased thirst, and puts you at higher risk for developing type 2 diabetes if left unaddressed.
Recommended actions
Reduce refined carbohydrates and sugary foods, focus on whole grains and vegetables
Add 30 minutes of moderate exercise most days, especially after meals
Aim for 7-8 hours of quality sleep and work on stress management
Retest in 3-6 months to monitor your progress after lifestyle changes
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