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Latest content about Tests

Pulse Oximetry: How To Measure Oxygen (& Normal Levels)

Pulse oxymetry is measured using a small device that is generally placed on the tip of the finger. It allows you to measure saturation, which is the amount of oxygen circulating in the blood at a given time. Learn why saturation levels are important, how they can be measured and how to use a pulse oximeter.

Tests

High Platelet Count: Causes, Normal Levels & Treatment

A high platelet count can occur with exerce cising or after labor, and in these cases, high levels are expected. However, certain health conditions can also cause platelets to be high, like iron deficiency or some cancers. Learn more about what causes high platelets, what normal levels should be and how it is treated.

Tests

Prothrombin Time (PT): What Is It, Reference Range & Results

Prothrombin time is a test that evaluates the blood’s ability to clot and stop active bleeding. Normal levels are usually between 10 to 14 s in a healthy individual, but this can vary with medication use and other health conditions. Read more about what causes a high PT or low PT .

Tests

CA 125 Blood Test: What Is It, Uses & Normal Levels

The CA-15 blood test can be ordered as apart of routine screening, or if the doctor suspects ovarian cancer or endometriosis. Learn more about what CA-125 can identify, what it’s used for and how to interpret results .

Tests

Luteinizing Hormone (LH): Uses, Normal Levels & What Results Mean

Luteinizing hormone (LH) is produced by the pituitary gland and plays a fundamental role in female and male fertility. Learn more about what luteinizing hormone is, what it is for, normal levels and why it may be high or low.

Tests

AST Blood Test: Normal Levels (& What High Levels Means)

The AST blood test, also known as the TGO test, is requested to assess liver function. High AST levels can indicate pancreatitis, hepatitis and cirrhosis, for example. Learn how to understand the TGO-AST test.

Tests

Homocysteine: What Test Results Mean (High & Low Levels)

Homocysteine is an amino acid that is found in food like red meat and seafood. High levels of homocysteine are associated with a higher risk of cardiovascular diseases. Learn more about when this test is ordered, and what high or low levels mean.

Tests

Testosterone Test: Free & Total (What Normal Levels Are)

Testosterone tests (which include total testosterone and free testosterone) are often ordered to assess conditions in both men and women, including menstrual cycle changes, early-onset puberty, erectile dysfunction or infertility. Learn more about the difference between free and total testosterone and the normal levels.

Tests

D-Dimer Test: Why It's Order & Why High Levels Mean

D-dimer is a by-product of fibrin breakdown. Fibrin is a protein that is involved in the coagulation process, and both fibrin and D-dimer can increase with inflammation in the body, thrombosis and disseminated intravascular coagulation. Learn more about D-dimer, why it is ordered, and what high levels mean.

Tests

Waist to Hip Ratio: How to Calculate & Normal Ranges

A waist to hip ratio is a calculation that is used to evaluate the risk for cardiovascular diseases like diabetes or high blood pressure. Learn more about how a WHR is calculated, what results mean and what to do if your result is high.

Tests

EAG Blood Test: Reference Ranges & Normal Levels

An estimated average glucose (EAG) is the average amount of glucose in the blood over a 2 to 3 month period. It is calculated based on the amount of glycosylated hemoglobin in the blood. Learn more about what EAG is used for, what results mean and what normal levels are.

Tests

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

HOMA-IR & HOMA-BETA: Normal Levels & What Results Mean

The HOMA-IR and HOMA-BETA tests are used to assess insulin resistance and pancreas functioning. They can be beneficial for determining a diabetes diagnosis or assessing a risk for other conditions, like cardiovascular disease or metabolic syndrome. Learn more about what normal levels and what high or low levels mean.

Tests

Albumin Blood Test: High and Low Levels (& What Results Mean)

The albumin blood test is usually ordered by the doctor to investigate for possible kidney or liver problems. It can also help to assess general nutritional status. Learn more about what high and low levels mean, why this test is ordered and what normal levels are.

Tests

Troponin: Normal Levels, What Results Mean & Uses

Troponin is a type of protein that is released into the blood when there is damage to the heart. The troponin test is often used to confirm a possible heart attack, alongside other heart tests. Learn more about what a normal troponin level .