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an odorless, colorless gas, CO2, resulting from oxidation of carbon, formed in the tissues and eliminated by the lungs; used in some pump oxygenators to maintain the carbon dioxide tension in the blood. It is also used in solid form; see carbon dioxide snow and carbon dioxide slush.
carbon dioxide combining power the ability of blood plasma to combine with carbon dioxide; indicative of the alkali reserve and a measure of the acid-base balance of the blood.
carbon dioxide content the amount of carbonic acid and bicarbonate in the blood; reported in millimoles per liter.
carbon dioxide–oxygen therapy administration of a mixture of carbon dioxide and oxygen (commonly 5 per cent CO2 and 95 per cent O2 or 10 per cent CO2 and 90 per cent O2); used for improvement of cerebral blood flow, stimulation of deep breathing, or treatment of singultation (hiccupping). Carbon dioxide acts by stimulating the respiratory center; it also increases heart rate and blood pressure. Therapy is given for 6 minutes or less with a 5 per cent mixture and 2 minutes or less with a 10 per cent mixture. Potential adverse effects include headache, dizziness, dyspnea, nausea, tachycardia and high blood pressure, blurred vision, mental depression, coma, and convulsions.
carbon dioxide slush solid carbon dioxide combined with a solvent such as acetone, and sometimes also alcohol; used as an escharotic to treat skin lesions such as warts and moles and as a peeling agent in chemabrasion.
car·bon di·ox·ide snow
solid carbon dioxide used in the treatment of warts, lupus, nevi, and other skin affections, and as a refrigerant.
Synonym(s): dry ice
solid carbon dioxide, with a temperature of about -140° F (-78° C). It is used in cryotherapy of various skin disorders, such as the removal of warts.
a state of dehydration or relative deficiency of water.
1. that part of a radiographic dark room where film and cassettes are handled, i.e. there is no chance of film being contaminated by chemicals.
2. a slang expression for simulated research work, for reported experiments that were not actually done.
dry coat syndrome
see keratoconjunctivitis sicca.
the entire ration is made up of dried stored grain or hay.
the meal or biscuit type dog and cat foods that contain approximately 10% water. Economical, easily transported and stored; in many countries, this is the most commonly used form of mass produced pet food.
solidified carbon dioxide; in an icebox, it produces temperatures of about −76°F (−60°C).
the livestock, usually cattle, are kept in a small area with a firm floor but no roof or walls. All food and water are brought to them. Refers usually to dairy herds. See also feedlot.
a method of feeding poultry. Essentially a mixture of grain and supplements.
dry sow house/room
area where sows are housed and fed between mating and farrowing. Called also gestation barn.