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The _____ of the anesthetic syringe locks into the rubber stopper of the anesthetic cartridge so that the stopper can be retracted by pulling back on the piston rod
harpoon
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A(n) _____ is what a patient tells you regarding how he or she feels or what he or she is experiencing; a _____ is what you observe in a patient
symptom; sign
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Anesthesia is defined as _____.
the temporary loss of feeling or sensation
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When the patient’s hands go to his throat, as spasms of coughing or choking occur during an emergency, it indicates _____.
aspiration of a foreign object
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The cells of the brain are irreversibly damaged after _____ without oxygen
4 to 6 minutes
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The ABCDs of basic life support stand for _____.
airway, breathing, circulation, and defibrillation
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Lead foil from the radiographic film should be _____.
-
The most frequently used drug in a medical emergency is _____.
oxygen
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Scrap dental amalgam should be collected and stored in _____.
a designated, dry, airtight container
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To be certain the anesthetic solution is not injected into a blood vessel, the dentist _____.
-
During an emergency, it is most likely that the _____ will call emergency services and remain on the telephone at all times to obtain appropriate medical assistance
business assistant
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A short-acting local anesthetic agent can last from _____.
60 to 180 minutes
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During the loading of an anesthetic syringe, the _____ is loaded first
anesthetic cartridge
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The lengths of the needles used in dentistry are _____.
1 inch and  1 5/8 inches
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Which government agency enforces the disposal of regulated waste?
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EPA
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The agents that provide a temporary numbing effect on nerve endings located on the surface of the oral mucosa are _____
topical anesthetics
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The use of an anesthetic solution without a vasoconstrictor is recommended for patients with a history of _____.
recent myocardial infarction
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The gauge of the needle refers to the thickness of the needle; the larger the gauge, the _____ the needle
thinner
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Which of the following choices represents the lowest ratio, meaning greatest concentration, of vasoconstrictor in local anesthetic?
1:20,000
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Any chemical that can cause either a physical or health hazard is _____.
a hazardous chemical
-
Material Safety Data Sheets contain health and safety information about
every chemical in the office
-
A medical emergency can happen at any time, so it is important for the dental assistant to
be alert and continuously observe the patient to watch for problems
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The most frequently used form of pain control in dentistry is _____.
local anesthesia
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Hazard communication program training is required _____ for all continuing employees
once a year
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Latex gloves worn during patient care do not provide adequate protection when handling chemicals, because
the latex in the gloves degrades when exposed to chemical disinfectants
-
The different levels of consciousness and unconsciousness are referred to as stages of anesthesia; these stages include which of the following?
-
Absolute medical contraindications to nitrous oxide use _____.
do not exist, but certain conditions make it a poor choice for some patients
-
Any unexplained chest pain should be treated as _____.
a potential acute myocardial infarction
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The color-coding system for anesthetic cartridges allows the practitioner to select the correct anesthetic solution by distinguishing _____.
the correct brand of solution
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Most emergencies in the dental office occur _____ or at the onset of a procedure
during or immediately after administration of local anesthesia
-
Used radiographic fixer _____.
may be managed on site with installation of a silver recovery system
-
Intravenous sedation _____.
may be monitored by a certified dental assistant in some states after completion of a board-approved course
-
A victim who immediately feels the effects of a chemical spill, with symptoms of dizziness, headache, nausea, and vomiting, is experiencing
acute chemical toxicity
-
The dental assistant’s responsibility in an emergency situation is ____
-
For a topical anesthetic ointment to have optimum effectiveness, it must remain on the site of injection for _____.
1 minute
-
Eyewash units _____.
must be installed in every workplace where chemicals are used, according to OSHA regulations
-
Emergency telephone numbers should _____.
include local police, firefighters, and emergency medical services (EMS) personnel
-
Dermatitis may occur following chemical exposure by _____.
skin contact
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If a medical emergency involving a patient arises, the dentist and staff are responsible for providing emergency care until _____.
more qualified personnel arrive
-
The Hazard Communication Standard requires employers to inform their employees about the _____ of chemicals that they use in the workplace
identity and hazards
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If a pregnant patient feels dizzy or lightheaded while in a supine position, the patient should be _____.
turned onto her left side or moved into an upright sitting position
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_____ is considered regulated waste and requires special disposal
Human tissue
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When a chemical is transferred to a different container, the new container _____.
may be labeled with any label, providing the labeling system is easy to use and all employees are properly trained to understand and read the label
-
Nitrous oxide/oxygen analgesia use in dentistry dates back to 1844 and is also known as _____.
inhalation sedation
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When defibrillation is provided within the first five minutes of cardiac arrest, there is about a _____% chance that you can save the victim’s life
50
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Ventricular fibrillation causes _____ % of cases of cardiac
80 TO 90
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An allergy is an altered state of reactivity in body tissues in response to specific _____.
antigens
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_____ is a condition in which numbness remains after the effects of the local anesthetic solutions should have worn off
Paresthesia
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Cardiopulmonary resuscitation (CPR) is also known as _____.
basic life support
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General anesthesia is most safely administered in _____.
the hospital
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