Albumin (redirected from Albumin (disambiguation))

albumin /al·bu·min/ (al-bu´min)

1. any protein that is soluble in water and also in moderately concentrated salt solutions.

2. the major plasma protein, responsible for much of the plasma colloidal osmotic pressure and serving as a transport protein for large organic anions (e.g., fatty acids, bilirubin, some drugs) and for some hormones when their specific binding globulins are saturated.albu´minous

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egg albumin  albumin of egg whites.

albumin human  a preparation of human serum albumin, used as a plasma volume expander and to increase bilirubin binding in hyperbilirubinemia.

iodinated I 125 albumin  a radiopharmaceutical used in blood and plasma volume, circulation time, and cardiac output determinations, consisting of albumin human labeled with iodine-125.

iodinated I 131 albumin  a radiopharmaceutical used in blood pool imaging and plasma volume determinations, consisting of albumin human labeled with iodine-131.

serum albumin  albumin (2).

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al·bu·min (l-bymn)

n.

A class of simple, water-soluble proteins that can be coagulated by heat and precipitated by strong acids and are found in egg white, blood serum, milk, and many other animal and plant juices and tissues.

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Albumin

A protein that is important in maintaining blood volume. Low albumin levels is one sign of Alport syndrome.

Mentioned in: Alport Syndrome, Protein Electrophoresis

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albumin (albyōō´min),

n the primary protein of plasma (4.5% g) that aids in maintaining capillary osmotic pressure.

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albumin

1. any protein that is soluble in water and moderately concentrated salt solutions and is coagulable by heat.

2. serum albumin; a plasma protein, formed principally in the liver and constituting about four-sevenths of the 6 to 8% protein concentration in the plasma. Albumin is responsible for much of the colloidal osmotic pressure of the blood, and thus is a very important factor in regulating the exchange of water between the plasma and the interstitial compartment (space between the cells).

The presence of albumin in the urine (see albuminuria) indicates malfunction of the kidney, and may accompany kidney disease or heart failure.

A decrease in the serum albumin level may occur with severe disease of the kidney. Other conditions such as liver disease, malnutrition and extensive burns may result in serious decrease of plasma proteins.

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aggregated albumin

heat-denatured human albumin, which is labeled with radioisotopes for pulmonary perfusion scanning. Called also macroaggregated albumin. See also technetium.

⁵¹Cr-labeled albumin excretion

a method of determining gastrointestinal protein loss. After intravenous administration of ⁵¹Cr-labeled albumin, radioactivity in the feces is measured.

albumin-globulin (A/G) ratio

the ratio of albumin to globulin in blood serum, plasma or urine.

iodinated ¹²⁵I albumin

a radiopharmaceutical used in plasma volume determinations, consisting of albumin human labeled with iodine-125.

iodinated ¹³¹I albumin

a radiopharmaceutical used in blood pool imaging and plasma volume determinations, consisting of albumin human labeled with iodine-131.

macroaggregated albumin (MAA)

aggregated albumin.

serum albumin

albumin of the blood.