blood volume

DEFINITION:

The plasma volume added to the red cell volume.

osmotic

DEFINITION:

Of, relating to, or having the properties of osmosis.

antidiuretic hormone

DEFINITION:

See vasopressin.

arginine vasopressin

DEFINITION:

Vasopressin containing arginine, as that from most mammals, including man.

AVP

DEFINITION:

Arginine vasopressin.

osmolality

DEFINITION:

The concentration of an osmotic solution especially when measured in osmols or milliosmols per 1000 grams of solvent.
Osmolality is a measure of the concentration of particles in a solution. A highly concentrated solution will have a high osmolality. That is, it will have more particles per unit of solvent than a solution with a low osmolality. (JC)

radioimmunoassay

DEFINITION:

A highly sensitive and specific assay method that uses the competition between radiolabeled and unlabeled substances in an antigen-antibody reaction to determine the concentration of the unlabeled substance; it can be used to determine antibody concentrations or to determine the concentration of any substance against which specific antibody can be produced. Abbreviated RIA.

expressed

DEFINITION:

1. Showing a detectable effect of a gene.

2. Made known; shown.

3. Squeezed out; extracted by pressing.

plasma osmolality

DEFINITION:

See individual entries for plasma and osmolality .

hydropenic

DEFINITION:

Pertaining to hydropenia.

correlation

DEFINITION:

Most generally, the degree to which one phenomenon or random variable is associated with or can be predicted from another. In statistics, correlation usually refers to the degree to which a linear predictive relationship exists between random variables, as measured by a correlation coefficient. Correlation may be positive, i.e., both variables increase or decrease together, or negative or inverse, i.e., one variable increases when the other decreases.

osmolality

DEFINITION:

The concentration of an osmotic solution especially when measured in osmols or milliosmols per 1000 grams of solvent.
Osmolality is a measure of the concentration of particles in a solution. A highly concentrated solution will have a high osmolality. That is, it will have more particles per unit of solvent than a solution with a low osmolality. (JC)

regression

DEFINITION:

1. A return to a former or earlier state.
2. A subsidence of symptoms or of a disease process.
3. In biology, the tendency in successive generations toward the mean.
4. A return to earlier, especially to infantile, patterns of thought or behavior, a characteristic of many mental disorders also exhibited by normal persons in many situations, e.g., feelings of helplessness and dependency in a patient with a serious physical illness.
5. A functional relationship between the mean value of a random variable and the corresponding values of one or more variables identified by the experimenter (the independent variables).

X

DEFINITION:

Symbol for Kienbock unit and xanthine or xanthosine . See also exposure , definition 3.

concentration

DEFINITION:

1. Increase in strength by evaporation.

2. The ratio of the mass or volume of a solute to the mass or volume of the solution or solvent.

X

DEFINITION:

Symbol for Kienbock unit and xanthine or xanthosine . See also exposure , definition 3.

plasma osmolality

DEFINITION:

See individual entries for plasma and osmolality .

hydropenic

DEFINITION:

Pertaining to hydropenia.

blood volume

DEFINITION:

The plasma volume added to the red cell volume.

osmolality

DEFINITION:

The concentration of an osmotic solution especially when measured in osmols or milliosmols per 1000 grams of solvent.
Osmolality is a measure of the concentration of particles in a solution. A highly concentrated solution will have a high osmolality. That is, it will have more particles per unit of solvent than a solution with a low osmolality. (JC)

correlation

DEFINITION:

Most generally, the degree to which one phenomenon or random variable is associated with or can be predicted from another. In statistics, correlation usually refers to the degree to which a linear predictive relationship exists between random variables, as measured by a correlation coefficient. Correlation may be positive, i.e., both variables increase or decrease together, or negative or inverse, i.e., one variable increases when the other decreases.

regression

DEFINITION:

1. A return to a former or earlier state.
2. A subsidence of symptoms or of a disease process.
3. In biology, the tendency in successive generations toward the mean.
4. A return to earlier, especially to infantile, patterns of thought or behavior, a characteristic of many mental disorders also exhibited by normal persons in many situations, e.g., feelings of helplessness and dependency in a patient with a serious physical illness.
5. A functional relationship between the mean value of a random variable and the corresponding values of one or more variables identified by the experimenter (the independent variables).

X

DEFINITION:

Symbol for Kienbock unit and xanthine or xanthosine . See also exposure , definition 3.

infusion

DEFINITION:

1. The steeping of a substance in water to obtain its medicinal principles.

2. The product of the process of steeping a drug for extraction of its medicinal principles.

3. The therapeutic introduction of a fluid other than blood, as saline solution, into a vein.

NOTE---An infusion flows in by gravity, an injection is forced in by a syringe, an instillation is dropped in, an insufflation is blown in, and an infection slips in unnoticed.

blood volume

DEFINITION:

The plasma volume added to the red cell volume.

osmolality

DEFINITION:

The concentration of an osmotic solution especially when measured in osmols or milliosmols per 1000 grams of solvent.
Osmolality is a measure of the concentration of particles in a solution. A highly concentrated solution will have a high osmolality. That is, it will have more particles per unit of solvent than a solution with a low osmolality. (JC)

correlated

DEFINITION:

See correlation.

regression

DEFINITION:

1. A return to a former or earlier state.
2. A subsidence of symptoms or of a disease process.
3. In biology, the tendency in successive generations toward the mean.
4. A return to earlier, especially to infantile, patterns of thought or behavior, a characteristic of many mental disorders also exhibited by normal persons in many situations, e.g., feelings of helplessness and dependency in a patient with a serious physical illness.
5. A functional relationship between the mean value of a random variable and the corresponding values of one or more variables identified by the experimenter (the independent variables).

X

DEFINITION:

Symbol for Kienbock unit and xanthine or xanthosine . See also exposure , definition 3.

hydropenic

DEFINITION:

Pertaining to hydropenia.

blood volume

DEFINITION:

The plasma volume added to the red cell volume.

osmoregulation

DEFINITION:

The state of regulation of osmotic pressure especially in the body of a living organism.

AVP

DEFINITION:

Arginine vasopressin.

receptor

DEFINITION:

1. A molecular structure within a cell or on the surface characterized by (1) selective binding of a specific substance and (2) a specific physiologic effect that accompanies the binding, e.g., membrane receptors for peptide hormones, neurotransmitters, antigens, complement fragments, and immunoglobulins and nuclear receptors for steroid hormones.

2. A sensory nerve terminal that responds to stimuli of various kinds; classified in various ways including by the type of stimulus and by the location in the body.

V2 receptor - The structure to which the antidiuretic hormone, arginine vasopressin binds.

osmolality

DEFINITION:

The concentration of an osmotic solution especially when measured in osmols or milliosmols per 1000 grams of solvent.
Osmolality is a measure of the concentration of particles in a solution. A highly concentrated solution will have a high osmolality. That is, it will have more particles per unit of solvent than a solution with a low osmolality. (JC)