fluid

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fluid,

any substance that is able to flow. Of the four states of matterstates of matter,
forms of matter differing in several properties because of differences in the motions and forces of the molecules (or atoms, ions, or elementary particles) of which they are composed.
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, only a solidsolid,
one of the three commonly recognized states in which matter occurs, i.e., that state, as distinguished from liquid and gas, in which a substance has both a definite shape and a definite volume.
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 is not a fluid, since it has a definite shape that is not readily changed. Any liquidliquid,
one of the three commonly recognized states in which matter occurs, i.e., that state, as distinguished from solid and gas, in which a substance has a definite volume but no definite shape.
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, gasgas,
in physics, one of the three commonly recognized states of matter, the other two being solid and liquid. A substance in the gaseous state has neither definite shape nor definite volume. Like liquids, gases are fluids and assume the shape of their containers.
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, or plasmaplasma,
in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion). It is electrically conductive and is affected by magnetic fields.
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 is classed as a fluid.

fluid

[′flü·əd]
(physics)
An aggregate of matter in which the molecules are able to flow past each other without limit and without fracture planes forming.

fluid

1. a substance, such as a liquid or gas, that can flow, has no fixed shape, and offers little resistance to an external stress
2. capable of flowing and easily changing shape
References in periodicals archive ?
In contrast, although there was a small reduction of RBC in CG dogs at the end of fluid therapy treatment, it was not statistically significant, demonstrating that fluid therapy does not increase anemia in patients with CKD.
Rodt, Hansen B, et al, "Which goal for fluid therapy during colorectal surgery is followed by the best outcome: near-maximal stroke volume or zero fluid balance?
In both groups, in cases of decreased mean blood pressure (MAP) to <60 mmHg despite adequate fluid therapy, we administered norepinephrine at an initial dose of 0.
Worldwide, a minority of children's caregivers receive correct advice on fluid therapy in diarrhoea.
In a recent multi-country trial of fluid therapy for severely ill children, an anticipated mortality of up to 20% was reduced to 10%, probably because of ETAT.
But for dogs with a more serious case, more aggressive treatment--such as fluid therapy, antiemetics, antibiotics, pain medication and plasma transfusions--may be warranted.
Fluid Therapy for Veterinary Technicians and Nurses
Once the initial phase is over, it is very important to identify the patient's intravascular volume to optimise fluid therapy.