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 periodicals archive ?
The CBI had alleged a loss of Rs1.78 crore to the government due to the alleged installation of an illegal telephone exchange at Dayanidhi Maran's house, which was used for Sun TV operations.
In 1945, with only a chief operator and nine telephone operators, the Telephone Exchange was able to provide communication support to the Receiving Station, the Fleet Service Schools, Camp Allen, the Naval Hospital and the Supply Depot.
Now her story as one of Scotland's longest-serving and last telephone exchange operators is to be told as part of an exhibition in one of 10 new galleries being opened at the museum in July.
NEW LINES The old telephone exchange where rents for office space will be quoted at pounds 17 or pounds 18 per sq ft.; PLANS Adderstone's Ian Baggett.
As a special birthday treat to mark his centenary, Tom toured BT's main telephone exchange at Telecom Centre in Little Park Street.
This new green sauce, built on top of the subterranean telephone exchange, occupies the greater part of the block.
"The era of conventional telephone exchanges is now over and most modern exchanges would now be installed in Pakistan.
CHITRAL, January 28, 2010 (Balochistan Times): A digital telephone exchange was inaugurated at Bumborate in Kelash valley by the former Tehsil Nazim Sartaj Ahmad Khan that help will promote eco-tourism of a tribe which is the rarest nation, having very unique culture.
SWAT, 27 April , 2009 (Frontier Star) -- Taliban have taken control of telephone exchange in Bahrain area of Swat.
AN OLD telephone exchange is to be transformed into a 60-bedroom boutique hotel, restaurant, shops and offices in Chester.

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