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Tag: fasting glucose test

September 3, 2026

Can Fatigue Be an Early Sign of Diabetes? Symptoms, Blood Tests, and Other Causes

When unusual tiredness may point to high blood sugar, which tests can clarify the cause, and when another explanation is more likely.

Fatigue can occur with diabetes, but tiredness by itself cannot tell you whether your blood sugar is high. The most useful clues are the pattern of fatigue, the symptoms that appear with it, your risk […]

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August 11, 2026

Diabetes and Prediabetes Blood Tests: A1C, Glucose, Insulin, and C-Peptide

Compare diabetes blood tests—including A1C, fasting glucose, OGTT, insulin, and C-peptide—for screening, diagnostic support, and ongoing monitoring.

Diabetes blood tests are not interchangeable. In nonpregnant adults, A1C, fasting plasma glucose, and the two-hour plasma glucose value from a 75-gram oral glucose tolerance test can be used for screening and diagnostic support. A […]

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August 11, 2026

Metabolic Health Blood Tests: Weight Loss, Insulin Resistance, and GLP-1 Monitoring

What blood tests are used for metabolic health, weight loss, and GLP-1 monitoring? Metabolic health blood tests can help evaluate glucose regulation, cardiovascular risk, liver and kidney function, thyroid function, blood-cell patterns, and selected nutrient […]

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July 28, 2026

Gout and Hyperuricemia: When High Uric Acid Does—and Does Not—Mean Gout

Why a high uric acid result is an important clue—not a stand-alone gout diagnosis—and which follow-up blood and urine tests may add context.

A high uric acid result can be an important clue, especially for someone who has experienced sudden attacks of severe joint pain, warmth, redness, and swelling. However, one abnormal blood result does not establish that […]

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July 24, 2026

Cardiovascular Health and Longevity: How Lab Testing Supports Healthy Aging

How inflammation markers and advanced cardiovascular biomarkers can help identify risk earlier and support healthy aging

Cardiovascular Health and Longevity at a Glance Cardiovascular health describes how effectively your heart and blood vessels deliver oxygen and nutrients throughout your body. It includes more than the absence of heart disease. Blood pressure, […]

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July 18, 2026

Obstructive Sleep Apnea: When Poor Sleep Becomes a Whole-Body Health Risk

How nighttime airway blockages can affect oxygen, energy, blood pressure, blood sugar, heart health, hormones, and performance—and where lab testing adds context.

Obstructive sleep apnea, commonly called OSA, is a sleep-related breathing disorder in which the upper airway repeatedly narrows or closes during sleep. Each event may reduce airflow, lower blood oxygen, interrupt normal sleep, and activate […]

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July 15, 2026

Rapid Weight Loss, GLP-1 Medications, and “Toxin Release”: What Patients Should Know

What rapid fat loss may—and may not—release, how GLP-1 side effects can affect hydration and nutrition, and which lab tests may support informed monitoring.

Rapid weight loss with medications such as semaglutide and tirzepatide can lead to meaningful changes in body weight, appetite, blood sugar, and cardiometabolic health. Semaglutide is a glucagon-like peptide-1 receptor agonist, commonly called a GLP-1 […]

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July 14, 2026

Low Testosterone Symptoms: Signs, Causes, and Lab Tests That May Help

Understand the sexual, physical, emotional, and reproductive signs of low testosterone and the blood tests that may help clarify their cause.

Low testosterone symptoms can include reduced sexual desire, fewer spontaneous erections, fatigue, loss of muscle mass, increased body fat, mood changes, difficulty concentrating, reduced body hair, infertility, and decreased bone density. However, these symptoms are […]

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July 7, 2026

Liver Health as a Metabolic Dashboard: Lab Tests That Reveal Whole-Body Patterns

How liver enzymes, blood sugar, lipids, inflammation, and fibrosis markers work together to reveal silent whole-body patterns.

Your liver does much more than process alcohol or remove waste. It helps regulate blood sugar, package and transport fats, produce important proteins, process medications, support digestion, and manage many substances circulating through the bloodstream. […]

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July 1, 2026

Blood Type Diet: What the Evidence Says—and Which Lab Tests Matter

What Science Says About Eating for Type O, A, B, or AB—and Which Blood Tests Can Actually Help Personalize Nutrition

The blood type diet claims that people should choose foods according to whether they have type O, A, B, or AB blood. Supporters suggest that blood type may influence digestion, metabolism, inflammation, weight, and the […]

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