Question 1

A dental hygienist is establishing a patient's tidal volume and the reservoir bag collapses.What is the most appropriate action when the bag collapses?

Accepted Answer

A)  Increase the amount of flow to the patient. 
B)  Decrease the amount of flow to the patient. 
C)  Wait for the patient to regulate his or her breathing pattern. 
A)  Increase the amount of flow to the patient. 
B)  Decrease the amount of flow to the patient. 
C)  Wait for the patient to regulate his or her breathing pattern. A

Question 2

When administering nitrous oxide/oxygen sedation for an adult the flow rate should be approximately

Accepted Answer

A)  1 to 2 liters/minute 
B)  3 to 4 liters/minute 
C)  4 to 5 liters/minute 
D)  6 to 7 liters/minute 
A)  1 to 2 liters/minute 
B)  3 to 4 liters/minute 
C)  4 to 5 liters/minute 
D)  6 to 7 liters/minute D

Question 3

The correct flow rate of nitrous oxide and oxygen is determined by

Accepted Answer

A)  The patient's age 
B)  The patient's weight 
C)  Obtaining the patient's minute volume 
D)  Dividing the patient's lung capacity by his or her respirations per minute 
A)  The patient's age 
B)  The patient's weight 
C)  Obtaining the patient's minute volume 
D)  Dividing the patient's lung capacity by his or her respirations per minute C

Question 4

Informed consent should be obtained prior to initiating each sedative procedure using nitrous oxide or any other drug.Informed consent must be obtained from the parent or legal guardian for any child younger than the age of 18,unless there are special legal circumstances.

Accepted Answer

A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true; the second is false. 
D)  The first statement is false; the second is true. 
A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true; the second is false. 
D)  The first statement is false; the second is true.

Question 5

Each of the following are contraindications for the use of nitrous oxide/oxygen sedation EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Pregnancy 
B)  Elderly 
C)  Chronic obstructive pulmonary disease 
D)  Chemical dependency 
A)  Pregnancy 
B)  Elderly 
C)  Chronic obstructive pulmonary disease 
D)  Chemical dependency

Question 6

Which of the following is NOT a side effect of nitrous oxide/oxygen sedation?

Accepted Answer

A)  Light-headedness 
B)  Nausea 
C)  Lethargy 
D)  Allergic reaction 
E)  Headache 
A)  Light-headedness 
B)  Nausea 
C)  Lethargy 
D)  Allergic reaction 
E)  Headache

Question 7

The reservoir bag is used to confirm the appropriate amount of gas flow to the patient.If the bag collapses there is an insufficient amount of gas to the patient.

Accepted Answer

A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true; the second is false. 
D)  The first statement is false; the second is true. 
A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true; the second is false. 
D)  The first statement is false; the second is true.

Question 8

During nitrous oxide/oxygen sedation the reservoir bag attached to the flow meter should remain

Accepted Answer

A)  Completely full 
B)  Two-thirds full 
C)  One-third full 
D)  Completely empty 
A)  Completely full 
B)  Two-thirds full 
C)  One-third full 
D)  Completely empty

Question 9

Each of the following is a sign of an appropriate level of sedation using nitrous oxide and oxygen EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Patient is comfortably warm 
B)  Patient's eyes are glazed 
C)  Patient needs a mouth prop 
D)  Patient indicates tingling in fingers 
A)  Patient is comfortably warm 
B)  Patient's eyes are glazed 
C)  Patient needs a mouth prop 
D)  Patient indicates tingling in fingers

Question 10

Nitrous oxide/oxygen administration should begin with what percent of nitrous oxide being administered?

Accepted Answer

A)  10% to 20% 
B)  20% to 30% 
C)  30% to 40% 
D)  40% to 50% 
A)  10% to 20% 
B)  20% to 30% 
C)  30% to 40% 
D)  40% to 50%

Question 11

What is the method of gradually increasing the dose of a drug over a period of time until the desired endpoint is achieved?

Accepted Answer

A)  Incremental dosing 
B)  Maximum permissible dose 
C)  Titration 
D)  Safely tolerated dose 
A)  Incremental dosing 
B)  Maximum permissible dose 
C)  Titration 
D)  Safely tolerated dose

Question 12

A patient's record indicates that 38% nitrous oxide was used to appropriately sedate the patient at the last visit.How will this information be used during the current appointment?

Accepted Answer

A)  The same percentage is necessary for the current appointment. 
B)  The patient will need 10% to 20% more at this appointment. 
C)  The patient will need 10% to 20% less at this appointment. 
D)  This information will not be used to determine the amount needed at this appointment. 
A)  The same percentage is necessary for the current appointment. 
B)  The patient will need 10% to 20% more at this appointment. 
C)  The patient will need 10% to 20% less at this appointment. 
D)  This information will not be used to determine the amount needed at this appointment.

Question 13

Use of nitrous oxide/oxygen sedation should be avoided in advanced stages of Alzheimer disease because the patient's ability to communicate or comprehend the intention of the procedure may be compromised.

Accepted Answer

A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but NOT related. 
C)  The statement is correct,but the reason is NOT. 
D)  The statement is NOT correct,but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct. 
A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but NOT related. 
C)  The statement is correct,but the reason is NOT. 
D)  The statement is NOT correct,but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct.

Question 14

In which patient should nitrous oxide/oxygen sedation be used?

Accepted Answer

A)  A patient with hypersensitive gag reflex 
B)  A severely claustrophobic patient 
C)  A patient with an upper respiratory infection 
D)  A patient in the first trimester of pregnancy 
E)  A patient who exhibits signs of alcohol intoxication or drug use 
A)  A patient with hypersensitive gag reflex 
B)  A severely claustrophobic patient 
C)  A patient with an upper respiratory infection 
D)  A patient in the first trimester of pregnancy 
E)  A patient who exhibits signs of alcohol intoxication or drug use

Question 15

To prevent lethargy,nausea,and headache following nitrous oxide/oxygen sedation,the patient should receive 100% oxygen for a minimum of

Accepted Answer

A)  5 minutes 
B)  10 minutes 
C)  15 minutes 
D)  20 minutes 
A)  5 minutes 
B)  10 minutes 
C)  15 minutes 
D)  20 minutes

Question 16

Nitrous oxide pressure in the tank will not show a decrease on the gauge until the _phase is nearly gone and primarily ___remains in the tank.

Accepted Answer

A)  Liquid; vapor 
B)  Gas; liquid 
C)  Liquid; water 
D)  Gas; vapor 
A)  Liquid; vapor 
B)  Gas; liquid 
C)  Liquid; water 
D)  Gas; vapor

Question 17

Nitrous oxide/oxygen sedation is primarily used to reduce pain and alleviate anxiety.Its use is only indicated for adult patients.

Accepted Answer

A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true; the second is false. 
D)  The first statement is false; the second is true. 
A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true; the second is false. 
D)  The first statement is false; the second is true.

Question 18

A patient suddenly feels uncomfortable during nitrous oxide/oxygen sedation.The hygienist should

Accepted Answer

A)  Tell the patient to relax and take big,slow breaths. 
B)  Decrease the percentage of nitrous oxide being delivered to the patient. 
C)  Take the patient's blood pressure. 
D)  Activate the emergency medical system.
Chapter 32.Nitrous Oxide/Oxygen Sedation 
A)  Tell the patient to relax and take big,slow breaths. 
B)  Decrease the percentage of nitrous oxide being delivered to the patient. 
C)  Take the patient's blood pressure. 
D)  Activate the emergency medical system.
Chapter 32.Nitrous Oxide/Oxygen Sedation

Exam 32: Nitrous Oxideoxygen Sedation

A dental hygienist is establishing a patient's tidal volume and the reservoir bag collapses.What is the most appropriate action when the bag collapses?

When administering nitrous oxide/oxygen sedation for an adult the flow rate should be approximately

The correct flow rate of nitrous oxide and oxygen is determined by

Informed consent should be obtained prior to initiating each sedative procedure using nitrous oxide or any other drug.Informed consent must be obtained from the parent or legal guardian for any child younger than the age of 18,unless there are special legal circumstances.

Each of the following are contraindications for the use of nitrous oxide/oxygen sedation EXCEPT one.Which one is the EXCEPTION?

Which of the following is NOT a side effect of nitrous oxide/oxygen sedation?

The reservoir bag is used to confirm the appropriate amount of gas flow to the patient.If the bag collapses there is an insufficient amount of gas to the patient.

During nitrous oxide/oxygen sedation the reservoir bag attached to the flow meter should remain

Each of the following is a sign of an appropriate level of sedation using nitrous oxide and oxygen EXCEPT one.Which one is the EXCEPTION?

Nitrous oxide/oxygen administration should begin with what percent of nitrous oxide being administered?

What is the method of gradually increasing the dose of a drug over a period of time until the desired endpoint is achieved?

A patient's record indicates that 38% nitrous oxide was used to appropriately sedate the patient at the last visit.How will this information be used during the current appointment?

Use of nitrous oxide/oxygen sedation should be avoided in advanced stages of Alzheimer disease because the patient's ability to communicate or comprehend the intention of the procedure may be compromised.

In which patient should nitrous oxide/oxygen sedation be used?

To prevent lethargy,nausea,and headache following nitrous oxide/oxygen sedation,the patient should receive 100% oxygen for a minimum of

Nitrous oxide pressure in the tank will not show a decrease on the gauge until the _phase is nearly gone and primarily ___remains in the tank.

Nitrous oxide/oxygen sedation is primarily used to reduce pain and alleviate anxiety.Its use is only indicated for adult patients.

A patient suddenly feels uncomfortable during nitrous oxide/oxygen sedation.The hygienist should

Dental Hygiene As a Profession

Legal and Ethical Considerations

Communication Skills

Health Education and Promotion

Immunology and the Oral Systemic Link

Evidence-Based Care

Exposure and Infection Control

Comprehensive Medical and Oral Health History

Assessment Instruments

Extraoral and Intraoral Examination

The Periodontal Examination

Hard Tissue Examination

Biofilm,calculus,and Stain

Indices

Radiology

Dietary Assessment and Nutritional Counseling

Risk Assessment

Dental Hygiene Diagnosis,treatment Plan,documentation,and Case Presentation

Devices

Dentifrices and Mouthrinses

Cariology and Caries Management

Sealants

Prostheses and Appliances,therapeutic Treatment

Ergonomics

Power Scaling

Instrumentation Principles and Techniques

Nonsurgical and Surgical Periodontal Therapy

Management of Dentin Hypersensitivity

Polishing

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Dental Fear and Anxiety Management

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Evaluation

Maintenance

Introduction to Special Needs

Cardiovascular Disease

Respiratory

Sensory Disability: Vision and Hearing Impairment

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Neurological Impairments

Endocrine System

Immune System

Hematological Considerations

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Pediatric Patient

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The Elderly

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