High Insulin Blood Test: Causes, Insulin Resistance, Weight Gain, and Meaning
A high insulin blood test usually means the pancreas is making more insulin than expected for the situation. Most often, this happens because the...
High Random Blood Glucose Test: Causes, Diabetes Screening, Hyperglycemia, and Meaning
A high random blood glucose test means your blood sugar was above the expected range at the moment the sample was taken, regardless of...
High Serum Osmolality Test: Causes, Dehydration, Diabetes, Sodium, and Meaning
Serum osmolality measures how concentrated the liquid part of your blood is. A high result means your blood has more dissolved particles than expected...
HOMA-IR and Fasting Insulin: Interpreting Insulin Resistance Without Overdoing It
HOMA-IR and fasting insulin can reveal early strain in blood sugar regulation before fasting glucose or A1c clearly crosses into prediabetes or diabetes. They...
HOMA-IR Test: Insulin Resistance Score, Normal Range, Calculator, and Meaning
HOMA-IR is a calculated score that estimates insulin resistance from two fasting blood tests: glucose and insulin. It helps show how hard the pancreas...
Insulin Blood Test Normal Range: Fasting Levels and Meaning
An insulin blood test measures how much insulin is circulating in your blood at the time of the draw. Insulin is the hormone that...
Lactate Blood Test: High Lactate, Lactic Acidosis, Normal Range, Sepsis, and Results
A lactate blood test measures the amount of lactate in your blood. Lactate is a normal fuel-related substance your cells make every day, especially...
Low Blood Glucose Test Result: Causes, Hypoglycemia, Symptoms, and Meaning
A low blood glucose test result means the amount of glucose circulating in your blood was below the level your body usually needs for...
Low C-Peptide Blood Test: Causes, Low Insulin Production, Diabetes Type, and Meaning
A low C-peptide blood test usually means the pancreas is making less insulin than expected. C-peptide is released when the body makes its own...
Low Insulin Blood Test: Causes, Diabetes, Pancreas Function, and Meaning
A low insulin blood test means the amount of insulin measured in your blood is below the expected range for the situation. Insulin is...
Low Random Blood Glucose Test: Causes, Hypoglycemia, Symptoms, and Meaning
A low random blood glucose test means your blood sugar was below the expected level at the moment the sample was taken, regardless of...
Metabolic Syndrome Blood Test Panel: Glucose, Insulin, Cholesterol, Triglycerides, and Risk Markers
Metabolic syndrome is a pattern of related risk markers that often travel together: higher blood sugar, insulin resistance, higher triglycerides, lower HDL cholesterol, higher...
OGTT and A1c: Interpreting Prediabetes and Diabetes Testing
The oral glucose tolerance test and A1c are both used to evaluate blood sugar, but they look at glucose control from different angles. A1c...
Oral Glucose Tolerance Test (OGTT): Normal Range, Diabetes Diagnosis, Gestational Diabetes, and Results
The oral glucose tolerance test, often shortened to OGTT, shows how your blood sugar responds after you drink a measured amount of glucose. It...
Postprandial Glucose and A1c: Interpreting After-Meal Blood Sugar
Postprandial glucose is your blood sugar after eating, and A1c is a longer-term average of glucose exposure over about 3 months. Looking at them...
Proinsulin Blood Test: High Proinsulin, Insulin Production, Diabetes Risk, and Results
Proinsulin is the unfinished form of insulin. Your pancreas makes proinsulin inside beta cells, then splits it into insulin and C-peptide before releasing it...
Pyruvate Blood Test: Lactate-to-Pyruvate Ratio, Metabolic Disorders, and Results
A pyruvate blood test measures pyruvate, a small molecule made when the body breaks down glucose for energy. Doctors rarely order pyruvate by itself....
Random Blood Glucose Test Normal Range: Reference Values and Meaning
A random blood glucose test measures the amount of glucose, or sugar, in your blood at the moment the sample is taken. Unlike a...
Two-Hour Postprandial Glucose Test: Normal Range, High After-Meal Glucose, Diabetes, and Results
A two-hour postprandial glucose test measures how much glucose remains in your blood about two hours after eating. It gives a snapshot of how...
Uric Acid and Insulin Resistance: Interpreting Metabolic Risk Patterns
Uric acid is often thought of only as a gout marker, but it can also add useful context to metabolic health. A mildly high...