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Latest content about Tests

MCH Blood Test (& What Low or High Levels Mean)

A Mean Corpuscular Hemoblobin (MCH) is a blood test that measures the average amount of hemoglobin in a blood cell. It is done by adding a reagent to a blood specimen and assessing the color it produces. Low or high levels may be a sign of another health condition. Learn more about what can cause a low MCH or high MCG.

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MCV Blood Test: Normal Levels, High or Low MCV & Anemia

The MCV or mean corpuscular volume refers to the size of the red blood cells. It is usually a part of the complete blood count. Learn about what the normal level is, what high or low levels mean, and how it is used to diagnose anemia.

Tests

Tilt Table Test: Procedure, Results & How to Prepare

The tilt table test is done as part of a workup for dizziness and falls to observe the effect of position changes on heart rate and blood pressure, which can trigger symptoms like weakness or dizziness. The test is done using a special table that tilts forward. Read more about how to prepare for the test.

Tests

RBC in Urine: Causes, Diagnosis & Treatment

RBC in the urine, or hematuria, is a test finding characterized by red blood cells in a urine sample. It can be noted due to red, pink or cloudy. RBC can appear with a UTI, kidney inflammation or due to medications. Learn more about what RBC in the urine means and how it's diagnosed and treated.

Tests

High Creatinine: When to Worry (9 Causes & Symptoms)

High creatinine levels are usually a sign of changes to kidney function from increase protein or creatinine intake, or due due to more health conditions problems, like a kidney infection, diabetic ketoacidosis or high blood pressure. Learn about what causes high creatinine and the symptoms it can lead to.

Tests

Potassium Levels: Normal Range & What Causes High or Low Levels

Potassium levels are important to keep within normal ranges, as this mineral is very important for proper functioning in the body. Having high or low potassium levels can trigger several symptoms and health conditions, from lethargy to palpitations and fainting. Learn more about what causes high or low potassium levels.

Tests

High Testosterone: Symptoms, Causes & Treatment

High testosterone refers to when testosterone levels are above the normal reference level in the blood. Symptoms can present differently in men and women. Learn more about other symptoms associated with high testosterone, what can cause it, and how it's diagnosed and treated.

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Low Cortisol Levels: Symptoms, Causes & Treatment

Low cortisol levels are characterized by values in the blood that are less than 5 µg/dL in the morning. It can can cause symptoms like fatigue, decreased appetite, weight loss, irritability or depression. Learn more about the symptoms of low cortisol levels and what can cause it.

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What is Cortisol? How It's Tested (& What High or Low Levels Mean)

Cortisol, also known as the stress hormone, is a hormone produced by the adrenal glands. It triggers many stress-related processes in the body and also regulates metabolism and immunity. Learn more about how cortisol levels are tested, and what high cortisol or low cortisol levels mean.

Tests

Blood Test for Anemia: 8 Exams to Help Confirm a Diagnosis

A blood test for anemia can be ordered by your doctor to confirm the presence of anemia as well as evaluate the underlying causes of it. While anemia is usually confirmed by low hemoglobin levels, the doctor can also evaluate characteristics that may be contributing to anemia, like the shape or size of red blood cells.

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Low White Blood Cell Count: 6 Common Causes

A low white blood cell count can be caused by viral infections, medication side effects, nutritional deficiencies, sepsis, systemic lupus erythematosus, or myelodysplasia. Learn more about the main causes of a low white blood cell count and what to do to treat each condition.

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Lactate: When It's Tested, Normal Levels & High Lactate Causes

Lactate is a product of glucose metabolism when glucose is transformed into energy without oxygen present. High lactate can occur with intense physical intensity or due to a health condition, like sepsis or SIRS. Learn mroe about when this test is ordered, what causes high lactate and what normal lactate levels are.

Tests

Anti-CCP: What Is It For: How It's Done & What Results Mean

Anti-CCP is a blood test that is used to diagnose rheumatoid arthritis. It is typically requested by a rheumatologist when a person presents with symptoms such as pain, swelling or redness in the joints. Learn more about what the anti-CCP test is for, how to prepare for it and what results mean.

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Glomerular Filtration Rate (GFR): Normal Levels & What It's For

The glomerular filtration rate, or GFR, is used to evaluate kidney functioning, and to determine the best treatment approach. Learn more about what GFR is, how it is calculated, and what normal levels should be.

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Thyroid Tests: 9 Tests That Assess Thyroid Functioning

Thyroid tests, like TSH, thyroid ultrasounds and antibody testing can help to assess thyroid functioning and reach a diagnosis for thyroid conditions, like hypothyroidism, hyperthyroidism and Graves' disease. Learn more about what thyroid tests your doctor may order and what they test.