what is usedin in combination with oxygen for conscious sedation?
nitrous oxide
what are four effects of N2O/O2 ?
pt remains conscious
protective reflexes are intact
releif of anxiety
analgesia
light sedation to relax the patient who can respond to situations and questions
conscious sedation
gereralized, reversible depression of the central nervous system characterized by loss of consciousness, amnesia and immobility but not necessarily complete anesthesia
gerneral anesthesia
the formation of blood or blood cells in the living body
hematopoiesis
nitrous oxide mixed with oxygen
N2O/O2
t/f every patient must use 50% nitrous and 50% oxygen combination
FALSE! dose of the gas comination for conscious sedation is variable according to pt response
what is the recommended maximum nitrous oxide limit in dental?
60% nitrous 40% oxygen
what is the highest the nitrous machine will allow for nitrous to go?
70% nitrous/ 30% oxygen
what is it called withn there is rapid movement of large amounts of nitrous oxide from circulation into the lungs and may dilute the oxygen in the lungs?
diffusion hypoxia
how do you prevent diffusion hpoxia?
administer 100% oxygen for the time needed to clear the nitrous oxide from the lungs
how do you terminate the nitrous effects?
exhalation
general anesthetic is a potent _____ depressant
CNS
general anesthetics produce a _______ loss of consciousness and insensitivity to ______ stimuli
reversible
pain
N2O/O2 is considered an ________ anesthetic
incomplete
what is stage I of anesthesia?
analgesia
in what stage is a pt if on nitrous?
stage I
t/f in stage one the pt is unconscious
false pt remains conscious and can still respond to command