*BASIC DELIVERY TECHNIQUE:
“Practice titration. Titration is a method of
administering a substance by adding
definitive amounts of a drug until an endpoint
is reached. For nitrous oxide / oxygen (N
2
O) /
O
2
) sedation, N
2
O is given in incremental
doses until a patient has reached a
comfortable relaxed state of sedation. The
ability to titrate N
2
O is a significant advantage
because it limits the amount of drug to that
which is required by the patient. If titration is
done properly, the patient does not receive
any more of the drug than is necessary. The
amount of N
2
O required by a patient on any
given day or time varies.”
1
For information on titration, a most valuable
resource for the practitioner is the Handbook
of Nitrous Oxide and Oxygen Sedation,
written by Clark and Brunswick and published
by Mosby (www.mosby.com). This text is a
concise and contemporary guide for nitrous
oxide / oxygen administration.
IMPORTANT NOTE:
When the Concentration Control knob is
open, the Flow Control knob is closed, and
there is no N
2
O flow indicated in the flow
tube, the Nitrous Oxide Failsafe System will
stop the flow of N
2
O. However, this safety
feature should not be used as the primary
shut off mechanism. The control knobs are
for primary shut-off.
1
Handbook of Nitrous Oxide and Oxygen
Sedation – Morris Clark Ann Brunick
NOTE: If your unit does not operate as
described in Steps 1 through 10, please
contact your Dental Dealer or Porter
Instrument.
MAINTENANCE AND SERVICE
It is advisable, on a two (2) year cycle, to
have the MXR Flowmeter factory checked
and serviced. The Nitrous Oxide Failsafe
System is made of moving parts. Between
servicing intervals, it is advisable to safeguard
against potential malfunctions by performing
the failsafe check before each and every use
of the unit. Safe operating techniques,
learned during your N
2
O - O
2
Conscious
Sedation training, should always be used.
Inspect and maintain the analgesia delivery
system to prevent N
2
O leaks in all hoses,
connections and fittings. Repair all leaks
immediately.
CLEANING METHODS
We recommend the use of an approved
disinfectant for the dental environment for
cleaning the outside of the flowmeter and
accessories. Do not spray disinfectant directly
onto meter. Spray disinfectant into disposable
towel and wipe unit thoroughly removing
excess disinfectant to eliminate buildup.
Control knobs can be autoclaved. Remove
knobs from flowmeter. Clean using an
appropriate disinfectant. Rinse with water
then autoclave. Do not exceed 275°F for 15
minutes maximum.
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