Blood albumin
Albumin is the most abundant protein in the blood. It is produced in the liver. Albumin plays many roles in the body. It is responsible for maintaining blood pressure by keeping water in the vessels. It acts as a transporter for a number of substances, including various hormones and drugs. Low albumin levels in the blood are often the cause of edema.
Changes in albumin can be quantitative (a decrease or increase in albumin levels) or qualitative (an alteration in the protein itself).
| What is the purpose of this test? |
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| How to prepare? |
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| Reference values* |
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| Associated tests | Related tests include the following:
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| How is it done? | Blood sample, usually taken from a vein in the arm. |
| How long before I get the results? | Results are usually ready in a day. It may take longer to receive your results. |
Blood albumin
High values of albumin:
- Dehydration
Low values of albumin:
- Liver damage (e.g., cirrhosis, lesions, or hepatitis)
- Kidney damage (e.g., nephrotic syndrome)
- Bodily inflammation (e.g., shock, severe inflammatory reaction)
- Digestive diseases (e.g., inflammatory bowel diseases, protein malabsorption)
- Malnutrition
- Infection
Blood albumin
Certain medications may affect test results. Here are a few examples:
- Corticosteroids (e.g., prednisone)
- Sex hormones (e.g., estrogen, testosterone)
- Insulin
Blood albumin
- Not eating in the days preceding sampling
- Having received intravenously or having drunk large quantities of fluids.
Blood albumin
When you go in for a blood test or any other medical exam, it's always a good idea to bring a complete list of any prescriptions, over-the-counter medications, or natural health products you're taking. Unless otherwise advised, it's best to take your medications as usual on blood test days. If in doubt, don't hesitate to talk to your healthcare professional.
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The patient information leaflets are provided by Vigilance Santé Inc. This content is for information purposes only and does not in any manner whatsoever replace the opinion or advice of your health care professional. Always consult a health care professional before making a decision about your medication or treatment.