Manage existing quizzes, Custom Templates, Better Security, Data Exports and much more

Sign inSign in with Facebook
Sign inSign in with Google

Nine questions on photophysics

Photophysics
Created 2019.
This exercise will ask you a set of nine questions on photophysics. Each question contains only one correct answer.
 
If you want to read up on it, you can do so by clicking on the link below.
 
 
Learning Objectives
 
  • List lamps that produce ultraviolet radiation for phototherapy
  • Describe a fluorescent source of UV radiation
  • Explain variation in output of a fluorescent source or UV radiation
  • Recognise specific spectral output curves for BB-UVB, NB-UVB, PUVA lamps, UVA1
  • Describe what is meant by dosimetry
  • Name radiometric terms and units are used for UVR dosimetry
Created by: Dr Muhammad Wasay Ali Khan, DermNet NZ Volunteer
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
Photophysics
Created 2019.
This exercise will ask you a set of nine questions on photophysics. Each question contains only one correct answer.
 
If you want to read up on it, you can do so by clicking on the link below.
 
 
Learning Objectives
 
  • List lamps that produce ultraviolet radiation for phototherapy
  • Describe a fluorescent source of UV radiation
  • Explain variation in output of a fluorescent source or UV radiation
  • Recognise specific spectral output curves for BB-UVB, NB-UVB, PUVA lamps, UVA1
  • Describe what is meant by dosimetry
  • Name radiometric terms and units are used for UVR dosimetry
Created by: Dr Muhammad Wasay Ali Khan, DermNet NZ Volunteer
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
1. Phototherapy:
a. Refers to the use of ionising portions of the electromagnetic spectrum for its therapeutic effect
b. Refers to the use of photography
c. May include the use of ultraviolet radiation for its therapeutic effect
d. Uses a photovoltaic system
2. Applications for ultraviolet (UV) radiation in medicine include:
a. UVA in laboratories and kitchens as a bactericidal agent
b. UVB for phototherapy
c. Extracorporeal photopheresis, used with topical or oral photosensitisers such as 8-methoxypsoralens
d. UVC for photodynamic therapy
3. Which of the following lamps do not produce UV radiation:
a. Mercury discharge lamps
b. Sodium-vapour lamp
c. Metal halide lamps
d. Blacklight
4. Characteristics of fluorescent lamps are:
a. High-pressure mercury discharge
b. Low-pressure mercury discharge
c. Excited mercury atoms produce UVB directly
d. Fluorescence is due to phosphors that convert UVB to longer wavelengths
5. The output of fluorescent lamps varies:
a. Output is less at the top and more at the bottom of the bulb
b. The output increases after the bulbs have been used for 100 hours
c. The output decreases after the bulbs have been used for 500 hours
d. The output is greatest in the first 3 minutes after switching on
6. Staff working in a phototherapy unit should:
a. Wear wrap-around UV-protective glasses blocking to at least 700 nm
b. Apply anti-fungal ointment on exposed skin
c. Attend regular training sessions
d. Have an electrician check the device every 3 years
7. Select the correct spectral power distribution of narrow band UVB:
0%
0
a.
0%
0
b.
0%
0
c.
0%
0
d.
8. Choose the radiological terms with the correct description:
 
 
a) Wavelength is a beam of radiation passing through space
b) Radiant energy is the distance between corresponding points on successive waves
c) Radiance is the radiation striking the patient
d) Irradiance is the radiance emitted by a source
e) Radiant exposure is the time integral of the irradiance
9. Choose the radiometric term with the correct unit:
 
a. Wavelength is J
b. Radiant energy is nm
c. Irradiance is J/cm2
d. Radiant flux is W
e. Radiant exposure is W/cm2
0
{"name":"Nine questions on photophysics", "url":"https://www.quiz-maker.com/QN7GZNB","txt":"Photophysics Created 2019. This exercise will ask you a set of nine questions on photophysics. Each question contains only one correct answer.   If you want to read up on it, you can do so by clicking on the link below.   https:\/\/www.dermnetnz.org\/cme\/phototherapy\/basic-photophysics\/   Learning Objectives   List lamps that produce ultraviolet radiation for phototherapy Describe a fluorescent source of UV radiation Explain variation in output of a fluorescent source or UV radiation Recognise specific spectral output curves for BB-UVB, NB-UVB, PUVA lamps, UVA1 Describe what is meant by dosimetry Name radiometric terms and units are used for UVR dosimetry Created by: Dr Muhammad Wasay Ali Khan, DermNet NZ VolunteerEditor: Adjunct A\/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand, 1. Phototherapy:, 2. Applications for ultraviolet (UV) radiation in medicine include:","img":"https://cdn.poll-maker.com/45-1479707/photophysics-1.jpg?sz=1200"}
Tools: Quiz Maker | Survey Maker