What potent drug used for pain control was derived from opium? CORRECT ANSWER Morphine
All of the following are reasons why procaine was NOT as desirable as lidocaine for pain control EXCEPT one. Which one is the EXCEPTION? CORRECT ANSWER D. It was addictive
Injectable amides are recommended ...
what potent drug used for pain control was derived from opium correct answer morphine all of the following are reasons why procaine was not as desirable as lidocaine for pain control except one whi
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Local Anesthesia for the Dental Hygienist
|315 questions| with correct answers
What potent drug used for pain control was derived from opium? CORRECT ANSWER Morphine
All of the following are reasons why procaine was NOT as desirable as lidocaine for pain control EXCEPT one. Which one is the EXCEPTION? CORRECT ANSWER D. It was addictive
Injectable amides are recommended over esters because there is: CORRECT ANSWER A and B (Less risk of allergic reactions and Increased potency)
What drug did Horace Wells first introduce into dentistry for pain control? CORRECT ANSWER Nitrous Oxide
What is the most popular local anesthetic used in the US today? CORRECT ANSWER Lidocaine
What is the definition of pain threshold? CORRECT ANSWER The point at which a sensation starts to be painful and discomfort results
What is pain perception? CORRECT ANSWER A neurologic experience of pain related to the process of receiving pain stimuli and transmission of this pain to the brain that differs little among individuals
what is pain? CORRECT ANSWER The sensation of discomfort that the patient feels, ranging from mild to severe
What is pain reaction? CORRECT ANSWER Personal interpretation and responses to the pain message that is highly variable among individuals Pain can be influenced by all of the following EXCEPT one. Which one is the EXCEPTION? CORRECT ANSWER D. Positive attitude
What theory helps dental hygienists understand the relationship between human-need fulfillment and human behavior? CORRECT ANSWER Human-needs theory
What is the definition of stress? CORRECT ANSWER A physical and emotional response to a particular situation
Which of the following may negatively influence the pain reaction threshold? CORRECT ANSWER Fear
If a patient has a high pain threshold, he or she will experience more intense pain than a patient
who has a low pain threshold. CORRECT ANSWER False
Which of the following is the personal interpretation and response to the pain message, and is highly variable among individuals? CORRECT ANSWER Pain reaction
In what year was the first local anesthetic introduced? CORRECT ANSWER 1884
It is best to schedule apprehensive patients for long appointments to complete as much work as possible, and it is best to schedule these appointments in the morning. CORRECT ANSWER Both statements are NOT correct.
What percentage of patients has reported to have had onset of dental anxiety by adolescence? CORRECT ANSWER 50-85%
Which of the following are signs of moderate anxiety? CORRECT ANSWER B and C only (History of frequently missed appointments and History of emergency appointments only) What is the best method of managing an anxious patient? CORRECT ANSWER Prevention
A stimulus is an electrical message from one part of the body to another. An impulse is an environmental change in an excitable tissue. CORRECT ANSWER e first statement is correct, but the second is NOT.
Which fibers are the principle fibers in the transmission of sharp, bright dental pain? CORRECT ANSWER Aδ fibers
Local anesthetics work by: CORRECT ANSWER Penetrating the nerve to inhibit Na+ influx
Local anesthetics mostly have their effect on myelinated nerves in which way? CORRECT ANSWER Mostly at the node of Ranvier
The minimal threshold stimulus required to excite a C fiber will also be sufficient to stimulate an
A fiber. CORRECT ANSWER False
When energy for conduction is derived from the nerve cell membrane itself and is no longer dependent on the stimulus for continuance, the conduction is considered to be: CORRECT ANSWER Self-propagating
The absolute refractory period occurs during the fraction of a millisecond when a nerve fiber can be excited only by a much stronger stimulus than the initial stimulus. CORRECT ANSWER False
Saltatory conduction refers to: CORRECT ANSWER Rapid transmission of nerve impulses along a myelinated nerve fiber
What is the type of glial cell located in the peripheral nervous system? CORRECT ANSWER Schwann Myelin (lipoprotein sheath) is composed of: CORRECT ANSWER Approximately 75% lipid, 20% protein, and 5% carbohydrate
The sympathetic division is involved with the "rest or digest" response. The parasympathetic division is known as the "fight or flight" response. CORRECT ANSWER NEITHER statement is CORRECT
The afferent division consists of all incoming information traveling along sensory or afferent pathways. The efferent divisions consist of all outgoing information along motor or efferent pathways. CORRECT ANSWER Both statements are CORRECT
What is the outer layer of the myelin sheath that wraps the entire nerve is called? CORRECT ANSWER Epineurium
The axon hillock: CORRECT ANSWER Decides whether to send the impulse further down the axon
In a resting neuron, what positive ion is most abundant outside the plasma membrane? CORRECT ANSWER Sodium
In a resting neuron, what positive ion is most abundant inside the plasma membrane? CORRECT
ANSWER Potassium
The electrical potential of nerve axoplasm in the resting state is approximately: CORRECT ANSWER -70 mV
Mantle bundles will be anesthetized first by a local anesthetic compared with core bundles. CORRECT ANSWER True
Chemical synapses use chemical transmitters called: CORRECT ANSWER Neurotransmitters
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