Fasting Blood Sugar

Fasting Blood Sugar (FBS) is a common test used to assess blood sugar levels. It provides important information about how the body manages glucose, especially in people with or at risk for diabetes.

Definition

Fasting Blood Sugar (FBS) measures the level of glucose in your blood after an overnight fast, typically lasting 8-12 hours. It helps evaluate how effectively your body regulates blood sugar without recent food intake, providing valuable insights into metabolic health.

Causes

Abnormal Fasting Blood Sugar levels may be caused by several factors, including diabetes, Prediabetes, hormone imbalances, or other medical conditions that affect glucose regulation.

Risk Factors

• Elevated FBS: Risk increases with obesity, physical inactivity, high blood pressure, or family history of diabetes.
• Low FBS: Certain medications, excessive alcohol use, or medical conditions like Hypoglycemia may cause low sugar levels.
• Other Factors: Stress, illness, or fasting beyond the normal period may also impact test results.

Symptoms

Fasting Blood Sugar results alone do not typically show symptoms, but extremely high or low levels may indicate:

• High blood sugar (hyperglycemia): Increased thirst, frequent urination.
• Low blood sugar (Hypoglycemia): Dizziness, weakness, sweating.

Diagnosis

• A Fasting Blood Sugar test is usually part of a larger diagnostic process for conditions like Prediabetes or diabetes.
• Normal FBS: Less than 100 mg/dL.
• Prediabetes: 100–125 mg/dL.
• Diabetes: 126 mg/dL or higher on two separate tests.

Management

• If Fasting Blood Sugar levels are abnormal, management may include lifestyle changes, monitoring, or medical treatments.
• Regular follow-ups are often essential for those with abnormal or borderline levels.

By keeping track of Fasting Blood Sugar, individuals can work with healthcare providers to manage and reduce risks associated with diabetes or other glucose-related conditions.