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TSH (Thyroid-Stimulating Hormone) Blood Test: Normal Ranges and Results

The TSH test is the most sensitive test for diagnosing thyroid disease. TSH stands for thyroid stimulating hormone, which is secreted by your…
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Prolactin Blood Test Levels: Normal Ranges and Results

A prolactin blood test measures the amount of prolactin in the blood to check for hormone imbalances. Men and women of all ages need prolactin…
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Total Antioxidant Capacity (TAC) Test: What Does it Measure?

You pop vitamin C. You munch blueberries. You may even spend hundreds of dollars on antioxidant supplements. But do you know if any of it is actually doing anything? The TAC test scores your body’s overall ability to fight free radicals from…
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D-Dimer Test: Normal Levels and What Your Results Mean

D-dimer is a protein fragment that shows up when your body is breaking down fibrin (the scaffolding that forms clots). That means elevated levels can signal everything from a life-threatening pulmonary embolism to routine post-surgical…
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Vitamin B3 Test: Measuring Niacin Metabolites and Ranges

You asked your doctor for a blood test for Vitamin B3. Finally, you thought, some answers as to why you were feeling so out of energy The issue: blood tests for niacin (vitamin B3) can miss the mark. Levels can change dramatically based on what…
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Hemoglobin A1C (HbA1c) Test: Ranges, Benefits and Limitations

If you’ve ever wondered how well your blood sugar has been controlled over the past few months, the HbA1c test gives you that answer. Unlike a standard glucose test that captures just one moment in time, HbA1c measures your average blood glucose…
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Glycated Serum Protein (GSP) Test: What You Should Know

Your doctor orders an HbA1c test and the results don’t match your daily glucose readings. Or maybe you have sickle cell trait and standard diabetes tests aren’t giving accurate information. The glycated serum protein (GSP) test provides…
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Uric Acid Test: Ranges, Results & What They Mean

Your physician orders routine blood work, and tucked away in the results is a line for uric acid. Most patients skip right past it, figuring it’s only a concern if they have gout. Big mistake. Getting your uric acid tested gives insight…
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C-Reactive Protein (CRP) Levels: Normal, High and When to Test

C-reactive protein is produced by your body whenever there is inflammation. It’s an acute phase protein, which means it increases quickly in response to a problem and then subsides once the issue is resolved. By knowing your CRP, you get an…
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Cytokine Testing: Markers Measured and What They Reveal

When your immune system responds, it doesn’t roar. It whispers using tiny protein messengers called cytokines. Cytokine testing quantifies those messages in your blood, so you can understand how inflamed or balanced your immune system really…
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