t t t t t
Lasertstandstfortwhat?t-tLight
Amplificationtby
Stimulated
Emissiontof
Radiation
Whattistthetdistancetmeasuredtintnanometerstbetweenttwotpeakstorttwottroughstknowntas?t
-tWavelength
Lighttoftonlytonetcolort&tonetspecifictwavelengthtistknowntas?t-tMonochromatic
Refractiontistalsotknowntastwhat?t-tTransmission
Thetprocesstwheretbytatnewlytcreatedtphotontoftlightt(generatedtthroughtamplification)tacqu
irestenergytequalttotthetphotonstthattcreatedtittistknowntas?t-tStimulatedtEmission
Thetstatestoftequilibriumtortmiddletstatetoftlightt-tMetastabletState
Whottheorizedtstimulatedtemission?t-tAlberttEinstein
Thetparttoftthetlasertthattcontainstthetactivetmediumtistcalled?t-tResinatortcavity
Whattaretthetstatestoftlighttintstimulatedtemission?t-tGroundtState
ExcitedtState
SinglettState
MetastabletState
Alexandritetlaertistintthetvisibletlighttspectrumtattwhattwavelength?t-t755tnm
ThetNd:YAGtlasertfallstintthetinvisibletlighttspectrumtwithtatwavelengthtoftwhat?t-t1064tnm
Whatttypetoftwavetistusedtintlaserthairtremoval?t-tPulsedtwave
Atchromophoretistalsotknowtattwhat?t-tTarget
Thetchromophoretabsorbstwhat?t-tEnergy
Gogglestworntbytthetpatienttandtpractitionertmusttbetapprovedtbytwhichtgroup?t-
tANSIt(AmericantNationaltStandardtInstitute)tfortClasst3BtandtClasst4tLasers
Eachtlasertwavelengthtistwhatttotitstmachine?t-tSpecific
Whattaretthetparameterstwhentdoingtlaserthairtremoval?t-tWavelength
,SpottSize
Fluence
PulsetWidth
Pulsedtlaserstallowtfortselectivetheatingtoftspecificttargets,tthististalsotknowntas?t-
tSelectivetPhotothermolysis
Thetrate/amounttoftenergytdeliveredtwithintatgiventareatistknowntas?t-tFluence
Antincreasetintfluencetequalstantincreasetintwhat?t-tHeat.tResultingtintmoretdamage
Thetlengthtofttimetthetlight/energytistintcontacttwithtthettargettthattistmeasuredtintmillisecond
st(ms):t-tPulsetwidth/Pulsetduration
Iftthettimetoftpulsetdurationtistchangedtfromtmillisecondsttotnanosecondstthetlasertistwhat?t-
tQtSwitched
AtQtswitchedtlasertistusedtfortwhat?t-tTattootremoval
WhichtskinttypestcanttoleratetantAlextlaser?t-t1-4
WhichtskinttypestcanttoleratetatNd:YAGtlaser?t-tAlltskinttypes
Whichtskinttypetshouldtonlythavetelectrolysistandtnotlaser?t-tTypet1
Iftthetpulsetwidthtistgreatertthantthetthermaltrelaxationttimetittresultstin?t-tAtburn
Iftthetpulsetwidthtistlesstthantortequalttotthetthermaltrelaxationttimetittresultstin?t-
tPerfectthairtremoval
Largertstructuresthavet__________tthermaltrelaxationttimest(TRT)t-tLonger
Smallertstructuresthavet_______tthermaltrelaxationttimest(TRT)t-tShorter
Whattkindtoftpulsetwidthstprotecttthetepidermis,tpenetratetdeepertandtcooltmoretslowly?t-
tLong
Longertpulsetwidthstaretfortwhattskinttype?t-t4-6
Whattkindtoftpulsetwidthstaretmoretaggressivetandtheattuptandtcooltdowntquickly?t-tShort
Shortertpulsetwidthstaretfortwhattskinttype?t-t1-3
Whattpercentagetoftfolliclestaretdamagedtwithteachtlaserttreatment?t-t15%
, Whattistatlong-termtstabletreductiontoftthetgrowingthairstaftertattreatmenttregime?t-
tLasertHairtRemovalt(LHR)
WhattdoestthetFDAtcalltlaserthairtremoval?t-tPermanentthairtreduction
Whattistthethighesttsettingtthetskintcanttoleratetwithouttdamagetcalled?t-tFluencetThreshold
Whattistthethighesttsettingtthetpatienttcanttoleratetwithouttthettreatmenttbecomingtimpossibl
etcalled?t-tPatienttThreshold
Thetamounttofthairtpertonetsquaretcentimetertistknowntas?t-tHairtdensity
Thethighertthethairtdensity,tthet_______tthetfluence?t-tLower
WhattpercentagetoftoverlappingtdotyoutwanttwhentdoingtLHR?t-t30%
Darker/tannedtskintrequirestwhattkindtoftfluence?t-tLower
Whattshouldtyoutnevertusettotcleantatpatient'stskintpriorttotLHR?t-tAlcohol
Pulsetdurationtistmeasuredtintwhattunit?t-tmillisecondst(ms)
Spottsizetistmeasuredtintwhattunit?t-tmillimeterst(mm)
Repetitiontratetistmeasuredtintwhattunit?t-thertzt(Hz)
Whotistthetgrandfathertoftlasertandtwastthetfirsttpersonttotusetwaterttotcooltthetskintduringtlas
er?t-tRoxtAnderson
Thetformulatfortfluencetis?t-tJoulest=tJ/cm2
Whattkindtoftlaserstallowtfortselectivetheatingtoftspecificttargets?t-
tSelectivetphotothermolysis
Fortdeepertlasertpenetrationtwhattshouldtthetpractitionertdottotthetlaser?t-
tChangettotatbiggertspottsize
Thetprimarytreasontfortusingtcoolingtdevicestduringtlaserthairtremovaltis?t-
tAllowstforthighertandtmoreteffectivetfluencesttotbetusedtwhiletsparingtthetepidermis
Duringtthetinitialtconsultation,tthetpatienttshouldtbetinformedtthattthetprocesstwillttakethowtlo
ngtfortlaserthairtremoval?t-tAtseriestofttreatments
Thetprincipletthattsaystenergytmusttbetabsorbedtbytantobjecttintorderttotproducetanteffecttistc
alled?t-tGrotthuss-Drapertlaw