Marcela Lemos - Page 9

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Marcela Lemos
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Recent Articles by Marcela Lemos

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.

Syphilis

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

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

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.

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

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.

Diseases and Conditions

Ureaplasma: Symptoms, Transmission & Treatment

Ureaplasma is an infection caused by Ureaplasma urealyticum bacteria, that is naturally in the urinary and genital tract. This bacteria can can increase in number due to low immunity. Symptoms of infections include inflammation of the ureth.

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

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 .

Tests

Eosinophils: Reference Ranges (& What High or Low Levels Mean)

Eosinophils are a type of defense cell in the blood that can increase due to allergies, infections, medications or inflammatory diseases. Results should always be interpreted by the ordering physician to determine an underlying cause. Learn.

Tests

Estradiol Test: Uses, Preparation & Reference Ranges

An estradiol test looks at the levels of this hormone circulating in the blood. It is used to evaluate the functioning of ovaries in women, and the testes in men, especially in cases of infertility. Learn more about what this test is used for and what high or low levels mean.