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.

exchange

/ex·change/ (eks-chānj)
1. the substitution of one thing for another.
2. to substitute one thing for another.

plasma exchange  the removal of plasma from withdrawn blood, with retransfusion of the formed elements into the donor; done for removal of circulating antibodies or abnormal plasma constituents. The plasma removed is replaced by type-specific frozen plasma or by albumin.

ex·change

(eks-chānj')
To substitute one thing for another, or the act of such substitution.
References in classic literature ?
Tars Tarkas and the chief exchanged a few words, and the former, calling to a young female among the throng, gave her some instructions and motioned me to accompany her.
Also, yesterday Evstafi Ivanovitch exchanged a word or two with me.
We flew into each others arms and after having exchanged vows of mutual Freindship for the rest of our Lives, instantly unfolded to each other the most inward secrets of our Hearts--.
The uses of every possession are two, both dependent upon the thing itself, but not in the same manner, the one supposing an inseparable connection with it, the other not; as a shoe, for instance, which may be either worn, or exchanged for something else, both these are the uses of the shoe; for he who exchanges a shoe with some man who wants one, for money or provisions, uses the shoe as a shoe, but not according to the original intention, for shoes were not at first made to be exchanged.
Mother," said Rogojin, kissing her hand, "here is my great friend, Prince Muishkin; we have exchanged crosses; he was like a real brother to me at Moscow at one time, and did a great deal for me.
The countess exchanged glances with Anna Mikhaylovna.
We walked home as far as his house, or rather his apartment over one of the village stores; and as he mounted to it by an outside staircase, we exchanged a joyous "Gute Nacht," and I kept on homeward through the dark and silent village street, which was really not that street, but some other, where Heine had been, some street out of the Reisebilder, of his knowledge, or of his dream.
Lifted through the air, exchanged into invisible hands that drew him through a narrow diameter of brass into a lighted room, Michael looked about him in expectancy of Jerry.
Reverse exchanges are particularly valuable when multiple properties are exchanged for a single replacement property.
Thus, land can be exchanged for improved real estate under Regs.
1031 exchanges do not recognize any gain or loss on the exchange of property held for productive use in a trade or business, or for investment, if such property is exchanged for property of like kind, which is to be held either for productive use in a trade or business or for investment.