Lasers Exam Questions and Correct Answers (Already Graded A+)
0 view 0 purchase
Course
Lasers
Institution
Lasers
Lasers Exam Questions and Correct Answers (Already Graded A+)
What are the general considerations for argon? - Answer- - Absorbed selectively by Hgb and melanin or other similar pigments
-Transmitted through clear substances
-Tissue penetration: 0.5 to 2 mm
What are the general consideratio...
Lasers Exam Questions and Correct
Answers (Already Graded A+)
What are the general considerations for argon? - Answer- - Absorbed selectively by Hgb
and melanin or other similar pigments
-Transmitted through clear substances
-Tissue penetration: 0.5 to 2 mm
What are the general considerations for KTP? (frequency doubled YAG) - Answer- -
Strongly absorbed by Hbg, melanin, and similar pigments
-Transmitted through clear substances
-Tissue penetration: 0.5-2 mm
What are the general considerations for dye laser? - Answer- - Wavelength can be
tuned to suit application; eg 585nm (yellow) for hemoglobin absorption and 630nm (red)
for photodynamic therapy
What are the general considerations for Nd:YAG? - Answer- -More readily absorbed by
dark tissue
-Transmitted through clear fluids
- Tissue penetration: 0.5 to 2 mm
What are the general considerations for CO₂ laser? - Answer- -Strongly absorbed by
water and thus by all tissue, pigmented or not
-Tissue penetration: <0.5 mm
What are the general considerations for He- Ne? - Answer- - Used as a low-power
coaxial aiming beam for nonvisible lasers ( CO₂ & Nd:YAG)
- Has no significant tissue interaction
Which lasers have tissue penetration: 0.5 to 2 mm? - Answer- 1. Argon
2. KTP
Which lasers are transmitted through clear substances? Clear fluids? - Answer- 1.
Argon and KTP
2. Nd:YAG
What laser has longer wave length= lower frequency= lower energy? - Answer- CO₂
In CO₂ lasers, the greater the wavelength= greater absorption by___ - Answer- Water
Is the CO₂ a strong or weak laser? Where does it work on? - Answer- =Relatively weak
laser
, - works on superficial tissues
In Nd- YAG lasers, the _____ wavelength= ____frequency= ____ energy - Answer-
Shorter wavelength= HIgher frequency= higher energy
Is the Nd-YAG laser a weak or stronger laser? what does it do to the deeper tissues? -
Answer- - Powerful laser
- Coagulates and necrosis deeper tissues
Lasers are used for airway surgeries. What are five examples? - Answer- 1. Laryngeal
papillomas
2 Tracheal scaring
3. Vascular malformation
4. Neoplasma
5. Idiopathic subglottic stenosis
What are the risks with lasers? - Answer- - Loss of airway
-Fire
- Burns
- Eye damage
What do you wrap the laser tube or ETT with? - Answer- laser tape
What medication classification do you give for preoperative preparation? - Answer-
Antisialagogue
What do you give the OR personnel and patient for preparation for laser? - Answer- eye
protection
What can cause airway obstruction? - Answer- - Foreign body
-Airway edema
-Obstructive mass/lesion
T or F shared airway btwn the surgeon and anesthetist is an airway concern - Answer-
True
Ppt slide 16 - Answer- ...
Slide 17. Shows OSA and with an small or receding jaw - Answer- ...
Slide 18. OSA collapses that causes an area of lower pressure and higher flow velocity
- Answer- ...
T or F In OSA, there is floppy upper airways - Answer- True
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
