Chapter 13 Quiz Laser

Question 1 of 10

1. Question

1 point(s)

According to the video lesson, the common unit for expressing the wavelength of an esthetic laser is _________

angstrom
decimeter
nanoangstrom
nanometer

Question 2 of 10

2. Question

1 point(s)

In the lesson article and video, with respect to esthetic lasers, a chromophore is defined as being _____________________

The depth at which we want to penetrate the skin
The target tissue or structure that reflects as much energy as possible
the target tissue or structure that absorbs all the wavelengths
the target tissue or structure that absorbs a specific wavelength more than other wavelengths

Question 3 of 10

3. Question

1 point(s)

The absorption coefficient determines ___________a light of a particular ______________ can ____________ before being absorbed

the distance, amplitude, be reflected
the wavelength of, amplitude, penetrate
the distance, wavelength, penetrate
the frequency of, wavelength, be reflected

Question 4 of 10

4. Question

1 point(s)

Common chromophores associated with esthetic laser procedures include: MATCH THE CHROMOPHORE WITH THE WAVELENGTH AND/OR PROCEDURE

Sort elements

permanent hair reduction
fractionated Q switched 1064nm Nd:YAG laser
Carbon Dioxide lasers
there are no esthetic lasers that target that chromophore

eumelanin
black ink
water
air

Question 5 of 10

5. Question

1 point(s)

According to the lesson video, the FDA has recently approved 1064nm Nd:YAG lasers for use with breast (and other large tissue structures) lifting

true
false

Question 6 of 10

6. Question

1 point(s)

According to the lesson video, all of the following features of a laser could potentially change or improve EXCEPT ONE. Choose the EXCEPTION

the ergonomics of handpiece
the level at which a particular wavelength that can be absorbed into a given chromophore by means of an optical clearing agent
the cooling system
the attractiveness of the unit housing

Question 7 of 10

7. Question

1 point(s)

When selecting a laser for a particular treatment, in addition to knowing how deep a particular laser wavelength will penetrate into the skin, the technician must also factor in ______________. Select ALL THAT APPLY

Competing or chromophores with similar absorption coefficients
the relative distance between the penetration depth of the beam and the depth/position of the target chromophore in the tissue
the fact that handpieces start to lose effectiveness after many pulses have been fired.
the maximum and minimum settings of the machine

Question 8 of 10

8. Question

1 point(s)

In the lesson video, Kris points out that the _______________________ should only be used by medical professionals such as doctors and nurses.

2940nm Er:YAG laser
810 diode laser
1064 Nd:YAG laser
IPL

Question 9 of 10

9. Question

1 point(s)

According to the video lesson, the 755 nm Alexandrite laser should definitely not be used on Fitzpatrick Skin Type(s) _______. Choose ALL that apply

6
5
4
3

Question 10 of 10

10. Question

1 point(s)

According the chart below, the highest absorption for melanin is at 300nm (that is the limit the chart can show). Why doesn’t someone invent a laser that uses 300nm wavelength for permanent hair reduction? Choose the BEST reason only.

There is no laser medium that can emit a wavelength within 100nm of 300nm
The target chromophore in permanent hair reduction is not melanin
300nm is a somewhat ionizing radiation
in permanent hair reduction, the goal is to select the chromophore with the least amount of absorption