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Ch.37 Key Terms

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Analgesia
stage of anesthesia in which the patient is relaxed and conscious
Anesthesia
temporary loss of feeling or sensation
Anesthetic
medication that produces the temporary loss of feeling or sensation
Aspirate
to draw back or to draw within
Diffuse
to spread from an area of high concentration to one of low concentration
Duration
time from induction to complete reversal of anesthesia
Gauge
standard dimension or measurement of the thickness of an injection needle
Induction
time from injection to effective anesthesia
Innervation
supply or distribution of nerves to a specific body part
Lumen
the hollow center of the injection needle
Oximetry
measurement of oxygen concentration in the blood
Permeate
to spread or flow throughout
Porous
an object with minute openings that allow the passage of gas or fluid
Systemic toxicity
relating to a system, or typically the entire body
Tidal volume
amount of air inhaled and exhaled with each breath
Titrate
to determine the concentration of a substance
Titration
process of determining the exact amount of a drug or substance that would be used to achieve a desired level of sedation
Vasoconstrictor
type of drug that constricts(narrows) blood vessels; used to prolong anesthetic action