phys
phys 2
lasers
idk1
idk2
100

Physics is the complex study of matter, time, energy, ____________, and space

force

100

orthopedic drill uses circular motion to cut a hole in bone. This is an example of what type of energy?

kinetic energy

100

coupling is a specific burn hazard of monopolar endoscopic surgery when current passes inadvertently through instrument insulation and adjacent conductive material into tissue.

                Capacitive      

100

grounding pad that is applied to the patient to carry electrical current flow from the patient back to the power unit

dispersive

100

characteristic prevents the spread of heat (and damage) outside the target tissue

Selective absorption

200

the direction of the flow, changes back and forth within the circuit. The interval between directional changes is called a cycle.

AC

200

During surgery the perioperative team must suspect a problem if the surgeon repeatedly requests ___of the ESU

                increases in power      

200

When the path of electricity is interrupted by a less-conductive medium, this is called

                impedance      

200

 complete destruction of tissue

Ablation

200

Stored in sealed packages to keep the gel moist

patient return electrode

300

lens is thinner at the middle than at the edges and causes the light to diverge or spread.

concave

300

In coagulation mode, the ___in cutting mode.

voltage is lower than

300

The two most common injuries associated with unintentional laser exposure are

eye injury and tissue burn

300

as, liquid, or solid through which light energy is passed to create a laser beam, contained within the optical resonant chamber, is known as

the laser medium

300

endoscopic procedures require long, thin electrodes that can be inserted through a cannula

Active electrode

400

the point of greatest disturbance or height of an individual wave. This is measured in meters from top of the crest to the point rest.

amplitude

400

energy is created when electricity is transformed into mechanical energy to high-frequency vibration and friction.

Ultrasonic

400

In laser surgery a method of intermittent application of the laser light on the target tissue is called

                pulsed wave      

400

series of mirrors that reflects photons or free electrons within the optical resonant chamber and causes emission of more photons and the creation of laser energy

amplification

400

Do not place in a position that might cause the return current to cross other bioelectrical devices such as a pacemaker.

Patient Return Electrode

500

Many devices used in surgery derive their energy from

                electromagnetic radiation      

500

The PRE must be placed close to the surgical site over

                large muscle mass      

500

a characteristic of laser light in which the frequency of each wave is the same.

                Monochromatic      

500

destruction of cataracts using ultrasound technology

phacoemulsification

500

Current must exit the body to complete the electrical circuit.

Patient Return Electrode