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  • Tua Saúde
  • Marcela Lemos
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Recent Articles by Marcela Lemos

Illustrative image of the article HBsAb Test: What Is It, How to Test & What Results Mean
Hepatitis

HBsAb Test: What Is It, How to Test & What Results Mean

An HBsAb test is ordered to determine whether a patient is immune to hepatitis B. It can also be ordered to evaluate the effectiveness of treatment for an active Hep b infection. Learn more about how this test is done, what the results mean, and why it is ordered with the HbsAg test.

Illustrative image of the article Ferritin: Normal Levels, What Results Mean & Why It's Ordered
Tests

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.

Illustrative image of the article Neutrophils: What High or Low Levels Mean
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.

Illustrative image of the article 10 Parasite Symptoms (w/ Online Symptoms Quiz) & Treatment
Intestinal Worms

10 Parasite Symptoms (w/ Online Symptoms Quiz) & Treatment

Parasite symptoms can abdominal pain, diarrhea, bloating and anal itching, and can vary depending on the parasite identified. Learn more about the top 10 parasite symptoms that can occur with an intestinal infection (including how symptoms present in babies and children) plus how this condition is diagnosed and treated.

Illustrative image of the article Immunoglobulin A (IgA): What It's For (& What High or Low Levels Mean)
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.

Illustrative image of the article Lipase: Why The Test Is Ordered, Normal Levels & Why It's High
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.

Illustrative image of the article Basophils: Normal Levels (& What Causes High or Low Results)
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.

Illustrative image of the article Urease Test: How It's Done & What Results Mean
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.

Illustrative image of the article VDRL: What It's For, How It's Done, & Results
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.

Illustrative image of the article Coombs Test: Direct & Indirect, How It's Done and Results
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.

Illustrative image of the article ASO Titer (Antistreptolysin O Test): What It's For & Results
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,.

Illustrative image of the article AST/ALT Blood Test: What Is It For and Normal Levels
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 .

Illustrative image of the article Transferrin: What It's For, Normal Levels & High or Low 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.

Illustrative image of the article Amylase: Normal Levels & What Results Mean (High & Low)
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.

Illustrative image of the article High Platelet Count: Causes, Normal Levels & Treatment
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.

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Foto de Marcela Lemos
Created by: Marcela Lemos Biomedical Scientist
Masters in Applied Microbiology with experience in Clinical Analysis. Degree obtained through the UFPE. Licensed to practice through the CRBM/PE #08598.
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Tua Saúde is an informative space that intends to inform and educate readers about topics related to health, nutrition and wellbeing. This information should not be used to substitute a clinical diagnosis or treatment, nor does it replace the medical advice provided by a doctor.

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