exchange

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exchange

 [eks-chānj´]
1. the substitution of one thing for another.
2. to substitute one thing for another.
gas exchange the passage of oxygen and carbon dioxide in opposite directions across the alveolocapillary membrane.
health care information exchange in the nursing interventions classification, a nursing intervention defined as providing patient care information to health professionals in other agencies.
impaired gas exchange a nursing diagnosis approved by the North American Nursing Diagnosis Association, defined as excess or deficit in oxygenation and/or carbon dioxide elimination at the alveolocapillary membrane (see gas exchange). Etiological and contributing factors include an altered oxygen supply, changes in the alveolar-capillary membrane, altered blood flow, and altered oxygen-carrying capacity of the blood. Defining characteristics include changes in mental status such as confusion, somnolence, restlessness, and irritability; ineffective coughing and inability to move secretions from the air passages; hypercapnia; and hypoxia. For specific medical treatments and nursing interventions, see airway clearance, ineffective; breathing patterns, ineffective; chronic airflow limitation; and anemia.
plasma exchange see plasma exchange.

ex·change

(eks-chānj'),
To substitute one thing for another, or the act of such substitution.

ex·change

(eks-chānj')
To substitute one thing for another, or the act of such substitution.
References in classic literature ?
Money then being established as the necessary medium of exchange, another species of money-getting spon took place, namely, by buying and selling, at probably first in a simple manner, afterwards with more skill and experience, where and how the greatest profits might be made.
For which reason others endeavour to procure other riches and other property, and rightly, for there are other riches and property in nature; and these are the proper objects of economy: while trade only procures money, not by all means, but by the exchange of it, and for that purpose it is this which it is chiefly employed about, for money is the first principle and the end of trade; nor are there any bounds to be set to what is thereby acquired.
There were no operators, switchboards, or exchanges. But there had now come a time when more than two persons wanted to be in the same conversational group.
In some exchanges as many as half a dozen operators were necessary to handle a single call; and the clamor and confusion were becoming unbearable.
Then, again, within the city, how will they exchange their productions?
Then they will need a market-place, and a money-token for purposes of exchange.
We see, therefore, how the modern bourgeoisie is itself the product of a long course of development, of a series of revolutions in the modes of production and of exchange.
He doesn't even make much money on the Stock Exchange. But he's awfully good and kind."
Noun --A social meeting of two (or more) Whale-ships, generally on a cruising-ground; when, after exchanging hails, they exchange visits by boats' crews: the two captains remaining, for the time, on board of one ship, and the two chief mates on the other.
And that is, if thou wilt make the exchange of garments with Lord Athelstane instead of me.''
It was two or three days after the news of this reached London that Macalister came into the tavern in Beak Street and announced joyfully that things were looking brighter on the Stock Exchange. Peace was in sight, Roberts would march into Pretoria within a few weeks, and shares were going up already.
The prince took off his tin cross, Parfen his gold one, and the exchange was made.