Anesthesia and pain control – Flashcards
Unlock all answers in this set
Unlock answersquestion
____ is determining the exact amount of drug use to acheive a desired level of sedation
answer
Triturate
question
The agents that provide a temporary numbing effect on nerve endings located on the surface of the oral mucosa are:
answer
Topical anesthetics
question
To be certain that the anesthetic solution is not injected into a blood vessel, the dentist:
answer
uses an aspirating syringe. Incorrect always aspirates before depositing any solution.
question
General anesthesia is most safely administered in the:
answer
Hospital
question
The different levels of consciousness and unconsciousness are referred to as stages of anesthesia; these stages include all of the following except stage:
answer
III (cardiac arrest)
question
The measurement of the oxygen concentration in the blood is its
answer
Oximetry
question
An anesthetic injection for a procedure for tooth #19 would require what size needle?
answer
1 5/8 inch
question
A ____ is a type of drug use to prolong anesthetic action and constrict blood vessels.
answer
Vasoconstrictor
question
A drug that produces a temporary loss of feeling or sensation is a(n)
answer
Anesthetic
question
Nitrous oxide oxygen administration always begins and ends with:
answer
The patient breathing 100% oxygen
question
In patients with an acute infection in a tooth or soft tissue, local anesthetics are not as effective because of an increase:
answer
in lymphocytes (white blood cells).
question
The use of an anesthetic solution without a vasoconstrictor is recommended for patients with a history of:
answer
recent myocardial infarction.
question
The anesthetic syringe consists of all of the following parts except a:
answer
Rubber stopper
question
Most surgical procedures are scheduled in the early morning, because:
answer
patients must not eat or drink for 8 to 12 hours before receiving general anesthesia
question
Which of the following must be used to protect dental personnel from the occupational risks of nitrous oxide by reducing the N2O released into the treatment room?
answer
Vacuum system AND Patient mask that fits well and does not leak
question
The tank or cylinder of ______ is always color-coded blue
answer
Nitrous oxide
question
The most frequently used form of pain control in dentistry is:
answer
Local anesthesia
question
The hollow center of the needle through which the anesthetic flows is called the:
answer
Lumen
question
The gauge of the needle refers to the thickness of the needle; the larger the gauge, the _____ the needle.
answer
Thinner
question
During the loading of an anesthetic syringe, the _____ is loaded first.
answer
Anesthetic cartridge
question
The condition in which numbness remains after the effects of the local anesthetic solutions should have worn off is:
answer
Paresthesia
question
The time from injection to the point at which anesthesia takes effect is the
answer
Induction
question
To have optimal effectiveness of the topical anesthetic ointment type, it must remain on the site of the injection for:
answer
1 to 2 min
question
____ is added to a local anesthetic agent to slow down the intake of the agent and increase the duration of action
answer
A vasoconstrictor
question
In which stage of anesthesia is the patient relaxed and fully conscious?
answer
Stage I
question
Which of the following choices represents the lowest ratio, meaning greatest concentration, of vasoconstrictor in local anesthetic?
answer
1:20,000
question
What nerve is anesthetized for tooth #31?
answer
Inferior anterior nerve
question
Used or contaminated needles and cartridges are discarded in the
answer
Sharps container
question
A scavenger system on a N2O/O2 unit is recommended to:
answer
protect chairside assistants from occupational risks of N2O. reduce N2O released into treatment room. protect other dental personnel from occupational risks of N2O.
question
A short-acting local anesthetic agent can last _____ minutes.
answer
60-180 min
question
Local anesthetic agents are not effective when injected into an area where a tooth or soft tissue is infected because:
answer
an increase of lymphocytes, in the area to combat the infection, will interfere with the effectiveness of the anesthetic solution
question
Anesthesia is defined as:
answer
the temporary loss of feeling or sensation
question
Which of the following ratios of vasoconstrictor to local anesthetic would contain the highest level of vasoconstrictor?
answer
1:20,000
question
Absolute medical contraindications to nitrous oxide use:
answer
do not exist, but certain conditions make it a poor choice for some patients.
question
To provide optimal effectiveness, an ointment type of topical anesthetic should remain on the site of injection for a minimum of:
answer
15-30 seconds
question
The dental assistant is preparing anesthesia for tooth #13. What length needle would be selected?
answer
1 inch
question
One advantage of nitrous oxide use in a dental setting is that:
answer
the services of an anesthetist or other special personnel are not necessary.
question
The vasoconstrictor added to local anesthetic to prolong its effect is:
answer
Epinephrine
question
The time from when the local anesthetic takes complete effect until the complete reversal of anesthesia is the called the _____ of the anesthetic agent.
answer
Duration
question
What part of the anesthetic syringe must engage so that aspiration can occur during the injection?
answer
Harpoon
question
The type of local anesthetic that would be selected for a patient with a medical history that indicates a recent myocardial infarction is
answer
Carbocaine plain
question
A 30-gauge needle would be a _____ needle.
answer
Thinner
question
_____ anesthesia is frequently used on the mandibular teeth and is injected near a major nerve that numbs the entire area served by that nerve branch.
answer
Block
question
Nitrous oxide/oxygen analgesia use in dentistry dates back to 1844 and is also known as:
answer
Inhalation sedation
question
The lengths of the needles used in dentistry are
answer
1 inch and 1 5/8 inch
question
The part of the anesthetic syringe that locks into the rubber stopper of the anesthetic cartridge so that the stopper can be retracted by pulling back on the piston rod is the:
answer
Harpoon
question
The length of time from injection to complete and effective conduction blockage is called:
answer
Induction
question
The ____ is the standard dimension or measurement of the thickness of an injection needle.
answer
Gauge
question
What can cause paresthesia?
answer
Trauma to the nerve Bleeding into or around the nerve Contaminated anesthetic solution
question
Injecting the anesthetic solution directly into the tissue at the site of the dental procedure, generally used on the maxillary teeth, is called a(n)
answer
Infiltration anesthesia
question
The color-coding system for anesthetic cartridges allows the practitioner to select the correct anesthetic solution by distinguishing the correct _____ of the solution.
answer
Ratio and brand
question
Which of the following types of commonly prescribed sedatives for dental patients is indicated for children?
answer
Chloral hydrate (Noctec)
question
_____ is a temporary loss of feeling or sensation
answer
Anesthesia
question
What type of injection technique would the dentist use most frequently on tooth #6?
answer
Infiltration
question
The most common form of topical anesthetic used to control a gag reflex during an intraoral radiographic procedure is
answer
Spray
