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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plasma exchange  the removal of plasma from withdrawn blood, with retransfusion of the formed elements into the donor; done for removal of circulating antibodies or abnormal plasma constituents.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 periodicals archive ?
This was due to the larger BEE dust particles that could easily get lodged in the wider fin gaps of the first two heat exchangers, while the higher density wave fins tended to block more of the particles from depositing.
with narrower passages and more fins per inch on internal heat exchangers.
The regulations affecting the market and the price of heat exchangers are included in this report.
The second research titledHeat Exchanger Market by Type (Shell & Tube, Plate & Frame, Air Cooled, Printed Circuit), by Application (Chemical, Petrochemical, Oil & Gas, HVACR, Food & Beverage, Pulp & Paper, Power Generation), Classifications (MoC, Temperature Range & Fluid Type) and Geography, Trends & Forecast to 2019 says European region is the biggest market of heat exchangers, accounting for more than one-third of the total heat exchangers demand.
He said: Except for a new brand name that will be rolled out mid-term nothing will change for the customers of GEA Heat Exchangers as a result of this move from the GEA Group to Triton.
In 2007 he moved to GEA Heat Exchangers and took over part of the management responsibilities for setting up the production plant for plate heat exchangers in York, Pennsylvania (USA).
The proposed arrangement, in which heat exchangers are to be installed on limited number of racks, introduces a rather subtle issue related to the airflow pattern in the computer room.
Canadian supplier of process-cooling systems supplies custom chillers, cooling-tower systems, pump-tank systems, shell-and-tube heat exchangers, and condensers
This report provides a comprehensive analysis of the South African heat exchangers market from 2007 to 2015.
Heat exchangers are massive, rocket-shaped devices that compress natural gas into a liquid for transport to population centers.
The global plate & frame heat exchangers market has been witnessing many developments over the past few years.
7, 2015 /PRNewswire/ -- This report analyzes the worldwide markets for Heat Exchangers in US$ Million by the following Product Segments: Shell and Tube Heat Exchangers, Plate and Frame Heat Exchangers (Gasketed PHE, Welded PHE, Brazed PHE, & Other PHE), Air Coolers, Cooling Towers, and Other Heat Exchangers.