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Ch. 30 - Biomedical Science Flashcards | StudBud
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Ch. 30 - Biomedical Science
Ch. 30 - Biomedical Science
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1
The movement of electrical charge through a conductor is called:
electrical current
conduct
insulation
migration
2
Cryoablation uses a high-pressure gas called:
Co2
KTP
excimer
argon
3
The frequency of sound is stated in a measurement of:
cpmressions
waves
amps
hertz
4
Motion is known as _____ energy.
kinetic
mechanical
total
potential
5
When using the ESU for coagulation, the energy delivered is:
intermittent waves at a low frequency and high voltage
intermediate waves and low voltage
intermittent waves at a low frequency and low voltage
intermediate frequency and intermediate high voltage
6
The property of matter that causes a matter to resist change in motion is called:
inertia
momentum
range
speed
7
When current passes from the ESU through the active electrode, the energy is converted from electrical to _____ .
thermal
mechanical
magnetic
chemical
8
The bending of a light ray as it passes from one substance to another is called:
refraction
incidence
vibration
reflection
9
A repeated periodic disturbance or variation of energy, carried through a medium from point to point is called:
oscillations
molecular change
transfer energy
wave
10
When current moves in one direction and then reverses to return to the source, it is known as:
electrical current
direct current
alternaing current
optional current
11
A plume of vaporized tissue may contain residual _______ and is, therefore, important to protect the staff.
All of the above
carcinogens
mutagens
blood-borne pathogens
12
The component part of the computer that controls the cursor is called the:
mouse
index
scroller
scanner
13
When entering a room while the laser is in use, you must:
wear protective eyewear
wear a lead apron
no special precautions are necessary
wear a special mask
14
The gain or loss of electrons in an atom is termed:
ionization
hydraulic pressure
consolidation
Boyle's law
15
What type of energy is used with the harmonic system? (harmonic scalpel, forceps, scissors)
Ultrasonic
Monopolar
Fulgruation
Radiofrequency
16
In a simple electrical circuit, the wire that connects to the switch is:
neutral
ground
hot
None of the above
17
Current is measured in:
amps
volts
loads
circuits
18
What is the sterile component used with the electrosurgical unit?
Active electrode
Generator
Grounding pad
Patient return electrode
19
Nucleons are composed of subatomic particles known as:
quarks
isotopes
neutrons
protons
20
Which of the following can be used as a cutting electrode?
Needle tip
Spatula
Wire loop
All of the above
21
Surgery using extremely cold instrument to destroy tissue is called:
ultrasonic surgery
cryosurgery
phacoemulsification surgery
laser surgery
22
Who is ultimately responsible for abiding by all safety protocols during the use of electrosurgery?
All perioperative personnel
Surgeon
STSR
Circulator
23
Most outlets in the operating room run on:
110 V
220 V
60 V
120 V
24
What laser has the most power output?
Solid state
Gas
Semiconductor
Liquid
25
All of the following are true of lasers EXCEPT:
laser uses intense hot, precisely focused beams of light to cut/coag tissue
electricity does pass through the patient durning laser surgery
LASER: acronym for light amplification by stimulated emission of radiation
electricity does not pass through the patient durning laser surgery
26
Which theory explains the flow of electricity?
Atomic
Electron
Kirchhoff's
Ohm's
27
When operating a piece of electrical OR equipment, the most vital prong for safety proposes is the:
safety
ground
positive
negative
28
Any time that an object's velocity is changing, we say it is:
orbiting
static
projecting
accelerating
29
On the Internet, what function is used to return to a recently opened site that you have not saved on your computer?
History
Favorites
Search
Address book
30
Located on the back of CPU are special openings called ____ for plugging in cables for adding more computer components.
cords
ports
networks
drives
31
An enzyme extracted from bovine blood used as a topical hemostatic agent is:
tannic acid
oxytocin
collagen
thrombin
32
The tips of the active electrodes used in minimally invasive surgery (MIS) are coated with insulation to prevent:
patient from being burned
None of the above
glare coming off the metal instrument
keeping the metal portion of the instrument clean
33
If an object returns to its original position after force has been applied and then removed is said to be:
periodic
static
dynamic
elastic
34
The longer wavelengths of the color spectrum are seen in what color?
Red
Blue
Green
Violet
35
The path which electricity travels from its energy source and back again is called:
resistor
ampere
conductor
circuit
36
A device that transmits an impulse to a wave-transmitting system is:
an optical fiber
a resistor
an isolated circuit
a radio transmitter
37
What device is used to control the flow of electricity at the will of the operator?
Load
Switch
Resistor
Conductor
38
Electrosurgery can be used to:
destroy or remove disease tissue
coagulate blood vessels
incise tissue
All of the above
39
The center of atom is called the:
mass
nucleus
charge
matter
40
What scientist, expanding Hooke's wave theory, theorized that light can bend because it is a wave?
Young
Newton
Ohm
Einstein
41
The rate at which work is done is known as:
watt
power
velocity
energy
42
Web research is generally conducted with the help of:
browser
cursors
instant access
search engines
43
A product used to buffer the computer hardware against high electrical voltages is called a:
grounding pad
modem
surge protector
zip drive
44
What is the medium or elements activated to transmit photons in a laser beam?
Gas
Liquid dye
Solid
All of the above
45
Radio waves are considered _____ waves.
direct
magnetic
isolated
simple
46
The proper placement of the patient return electrode or grounding pad should be:
on the surgical side
farthest from the surgical site
always on the opposite side
near a bony surface
47
Endotracheal tubes and other anesthetic equipment can easily ignite in the presence of laser energy and:
silastic endotracheal tubing
pacemakers
o2-rich anesthetic agents
defibrillators
48
On the surface of the Earth, what causes objects to accelerate downward?
Excitation
Gravity
Energy
Electrical charges
49
Forceps or an instrument that contains two contact points which are used to coagulate tissue are called:
monopolar
Potts forceps
Ferris-Smith
bipolar
50
The following equipment must be available during a laser laryngoscopy:
None of the above
water and wet cottonoids
bronchoscope, tracheotomy tray
tracheotomy tray, wet towels
51
Sealing vessels with electrosurgery requires:
bipolar ESU instrument
physical pressure to create a weld in tissue
high frequency
All of the above
52
Anything that has mass and occupies space is termed:
element
matter
insulator
conductor
53
An AC (alternating current) cycle is termed a:
wave
hertz
volt
amp
54
An ESU used for delicate surgery is a:
bipolar unit
disposable unit
monopolar unit
dispersive electrode unit
55
The paper form of data in computer technology is the:
hard copy
file
database
disc
56
The fourth force found only in nature, and not in the nucleus, is known as:
binding energy
kinetic energy
elctromagnetic force
gravitational force
57
Restriction of the flow of current to a source is called:
resistance
magnetism
power
force field
58
All waves in the laser are monochromatic. This refers to:
all waves in the laser have the same length and are one color
all waves move in columns
they use the same power settings
the diameter of the beam is the same
59
A hardware component that converts printed text or picture to digital information for use in documents is called the:
modem
ethernet cord
printer
scanner
60
The sterile component of the ESU is:
inactive
active
patient plate
ground
61
The maximum distance that an object moves from its central position (equilibrium) is called:
amplitude
momentum
cycle
frequency
62
Visual display on the desktop of shortcuts to available programs is called:
topics
icons
displays
windows
63
The device that enables a computer to send and receive information by phone line is called a:
scanner
modem
monitor
USB port
64
The study of objects in motion is:
mechanics
velocity
speed
acceleration
65
The three laws of motion that are the basics of classical mechanics are the work of:
Newton
Bohr
Hooke
Ohm
66
One example of DC (direct current) is:
an x-ray machine
a flashlight
an electrosurgical unit
a surgical room light
67
____ borders the outer perimeter of an atom and is ____ charged.
Neutron, positively
Electron, negatively
Electron, positively
Proton, negatively
68
A separate wire that is an essential protection against an electric shock is:
active
neutral
ground
hot
69
The arrow, which appears on the screen to identify the location of currently addressed information is known as a:
cursor
taskbar
icon
scanner
70
The transfer of thermal energy by contact is called:
radiation
convention
conduction
greenhouse effect
71
The standard metric unit of power is:
volt
amp
hertz
watt
72
Which laser produces a visible blue-green beam?
Argon laser
Co2 Laser
Excimer (gas laser)
YAG
73
Alternating current has the ability to:
step-down voltage
step-up voltage
All of the above
alternate voltage
74
Who first identified a collection of particles of light as "photons"?
Newton
Einstein
Bohr
Young
75
A specially treated form of surgical gauze that has a hemostatic effect when buried in tissue is:
human fibrin foam
Oxycel
topical thrombin
Gelfoam
76
All of the following are true of lasers EXCEPT:
lasers do not need to be locked up when not in use
safety officer is required to manage laser risks and define safety protocol
only flame retardant drapes are used in laser surgery
signs should be visible to areas where laser surgury is being performed
77
What material forms the best conductor of electricity?
Lead
Copper
Rubber
Saltwater
78
For every action there is an equal and opposite reaction references:
Newton's first law
Newton's third law
Newton's second law
Newton's fourth law
79
A medical imaging technique that reveals the body's dynamic activities is:
ultrasound
CT
PET
tomogram