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plasma exchange  the removal of plasma from withdrawn blood, with retransfusion of the formed elements into the donor; done for removal of circulating antibodies or abnormal plasma constituents.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 ?
Among themselves a primitive barter began to spring up.
513-520) Then the son of Leto said to Hermes: `Son of Maia, guide and cunning one, I fear you may steal form me the lyre and my curved bow together; for you have an office from Zeus, to establish deeds of barter amongst men throughout the fruitful earth.
Some of the Fuegians plainly showed that they had a fair notion of barter.
Thus I could avoid all trade and barter, so far as my food was concerned, and having a shelter already, it would only remain to get clothing and fuel.
Two goats are enough," said Momaya, for the spirit of barter is strong in the breasts of the blacks.
Rawdon Crawley was general-in-chief over these arrangements, with full orders from Sir Pitt to sell, barter, confiscate, or purchase furniture, and she enjoyed herself not a little in an occupation which gave full scope to her taste and ingenuity.
At my time of life, food and clothing be all that is needed; and I have little occasion for what you call plunder, unless it may be, now and then, to barter for a horn of powder, or a bar of lead.
We have orphans, I know,' pursued Mr Milvey, quite with the air as if he might have added, 'in stock,' and quite as anxiously as if there were great competition in the business and he were afraid of losing an order, 'over at the clay-pits; but they are employed by relations or friends, and I am afraid it would come at last to a transaction in the way of barter.
she'd live on black bread and water, she would not sell her soul, she would not barter her moral freedom for comfort; she would not barter it for all Schleswig-Holstein, much less Mr.
He makes the horses ill with too much water, cuts good harness, barters the tires of the wheels for drink, drops bits of iron into the thrashing machine, so as to break it.
Thousands of swap suggestions offered by travellers to Italian B&B owners, with more and more supporting the scheme, some even accepting barter offers all year round.
In business for 27 years, Perry Constantinides, president of Barter Systems Inc.