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Ferritin: Normal Levels, What Results Mean & Why It's Ordered

Ferritin is a protein produced by the liver that stores iron in the body. It can become elevated during periods of inflammation or infection, or decreased with iron deficiency. Learn what ferritin tests mean, what the normal levels are, and the symptoms associated with a high or low ferritin.

Tests

Neutrophils: What High or Low Levels Mean

Neutrophils are immune cells that can become high in the cases of infection or inflammation. They can also be low due to conditions such as anemia or leukemia. Learn more about neutrophils, what they are and what it means to have high or low neutrophils.

Tests

Immunoglobulin A (IgA): What It's For (& What High or Low Levels Mean)

Immunoglobulin A, or IgA, is a protein that can be found in the body, mainly in the mucous membranes. Its main function is to protect the body against infections. Learn more what IgA is for, what normal IgA levels are, and what high IgA or low IgA levels mean.

Tests

Lipase: Why The Test Is Ordered, Normal Levels & Why It's High

Lipase is a digestive enzyme that may be increased with conditions like pancreatitis, pancreatic cancer, or acute appendicitis. Read more about why the lipase blood test is ordered, what normal levels are and why it may be high.

Tests

Basophils: Normal Levels (& What Causes High or Low Results)

Basophils are immune system cells that can become increased with allergies or prolonged inflammation. Learn more about what basophils are for, what normal levels are, and what high or low levels mean.

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High Prolactin Levels: Symptoms, Normal Levels & Causes

High prolactin levels are characters by values over 25 ng/mL. It is usually caused by stress, intense exercise or pregnancy, but can also be a sign of hypothyroidism or tumors. Check out what causes high prolactin, the main symptoms of high prolactin levels and how it is treated.

Tests

Urease Test: How It's Done & What Results Mean

The urease test is a laboratory test is ordered to help identify various bacteria, including Helicobacter pylori, within a specimen. Learn more about how the urease test is perfordoneed and what a positive or negative urease result means.

Tests

VDRL: What It's For, How It's Done, & Results

The VDRL test is used to diagnose or monitor syphilis. This test is typically ordered if this infection is suspected, or to determine the risk for syphilis in a pregnant woman. Learn more about how this test is done and what results mean.

Tests

Coombs Test: Direct & Indirect, How It's Done and Results

The Coombs test is typically ordered by the doctor to rule out or confirm hemolytic anemia, but it can also be used to identify other diseases. Two types can be ordered: a direct or indirect Coombs test. Check-out when a Coombs test is ordered, what the different types mean and how results are interpreted.

Tests

24 Hour Urine Test: Uses, How to Perform & Normal Levels

A 24-hour urine test evaluates different substances in the urine, such as clearance of creatine, albumin, and sodium. It is ordered to analyze kidney function and monitor disease progression or treatment. All urine in the period of 24 hours is collected in a special plastic container. Learn more about this test below.

Tests

ASO Titer (Antistreptolysin O Test): What It's For & Results

An ASO titer is a test performed to identify the presence of a toxin produced by Strep A. It is useful for the diagnosis of Streptococcus pyogenes infections and for investigating rheumatic fever. Learn more about what the ASO titer is for,.

Tests

AST/ALT Blood Test: What Is It For and Normal Levels

AST and ALT, also known as transaminases, are two hepatic enzymes that are usually measured in the blood to assess liver health and functioning. Get to know what can alter the AST and ALT blood levels .

Tests

ALT Blood Test: Normal Range & What High Levels Mean

An ALT blood test, also known as a TGP exam, is ordered to assess liver function. When ALT is high, it can be a sign of inflammation, hepatitis or cirrhosis. See what the result of the ALT blood test may indicate and what to do if it is abnormal.

Tests

Transferrin: What It's For, Normal Levels & High or Low Levels

Transferrin is a protein that transports iron to the tissues. The transferrin test is usually ordered together with iron and ferritin tests to confirm the presence of anemia and to identify the type the patient may have. Learn more about tr.

Tests

Amylase: Normal Levels & What Results Mean (High & Low)

O exame da amilase é feito com o objetivo de identificar doenças do pâncreas e avaliar a função desse órgão. Saiba mais sobre esse exame e o que significa quando o resultado está mais alto ou baixo que o normal.