Dosimetry II Final Exam Study Guide Questions with Complete Solutions (Latest 2025) LDR - Correct Answers ✅left in for 2-3 days HDR - Correct Answers ✅fractionated treatment What is the difference between LDR and HDR? - Correct Answers ✅The amount of activity in the sources. (They can be the same source) Huyam Capsule - Correct Answers ✅-Used for LDR uterus treatment -Treats from within to outside Fletcher Suit - Correct Answers ✅-Used for uterus and cervix treatment -Referred to as Tandum and Ovoid -Lead shield is used to stop dose to the RECTUM
Fletcher Suit treated to: - Correct Answers ✅Point A -
Limiting Point B - Pelvic Nodes Burnet Cylinder - Correct Answers ✅-Used to treat vaginal cancer 1 / 3
Dosimetry II Final Exam Study Guide Questions with Complete Solutions (Latest 2025) -Typically 5cm of cylinder -5mm treated beyond cylinder What is the same as 5Gy to 5mm? - Correct Answers ✅7Gy to the surface Cyade Template - Correct Answers ✅-Attaches to perineum -Treats canal & any specific outside spots -HDR use is cathedrals or needles Ballons for Breast Treatment - Correct Answers ✅red - (sources) blue - (controls size of ballon) purple - (retracts air)
- Irradiates OUTWARD
- Would deliver to much dose of OAR's because radiation
travels faster through air than tissue Sources with low half life are? - Correct Answers ✅Permanent Implants 2 / 3
Dosimetry II Final Exam Study Guide Questions with Complete Solutions (Latest 2025) In prostsate seed implants the treatment is considered delivered after? - Correct Answers ✅5 half lives The sources for prostate seed implants are... - Correct Answers ✅Polladium 104 and idiom 125 Polladium 104 - Correct Answers ✅faster delivery (12 Gy for treatment)
- 7.6 Gy for Boost )
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idiom 125 - Correct Answers ✅half life is longer so after implant swelling dissipates the full amount is delivered (14 Gy for treatment ) (10.8 Gy for Boost ) Spacing in prostate seed implants is - Correct Answers ✅.5mm spacing between seeds seeds are 4.5 mm in length All LDR treatments are - Correct Answers ✅AFTERLOADED time, distance sheilding is key pig transports source leak tests uses alcohol wipe to see residue