W/L Ch 8 Treatment Procedures Quiz Flashcards
The radiation therapist is responsible for which of the following?
I. Delivering radiation therapy treatments
II. Monitoring and operating sophisticated equipment
III. Maintaining detailed records of treatment
IV. Producing the patient’s treatment plan
a. I and II
b. I, II, and III
c. I, III, and IV
d. I, II, and IV
b. I, II, and III
Informed consent consists of which of the following? I. Purpose II. Treatment alternatives III. Benefits and risks IV. Disclaimer a. I and II b. I and III c. I, II, and III d. I, II, III, and IV
d. I, II, III, and IV
The comprehensive electronic medical record (EMR) in radiation oncology may include all except which of the following?
a. Patient’s history and physical
b. Schedules
c. Clinical charting
d. Radiation treatment details
a. Patient’s history and physical
Which of the following is a series of documentation and activities performed with the purpose of optimizing patient care?
a. Quality control
b. Quality auditing
c. Quality assurance (QA) program
d. Quality of life
c. Quality assurance (QA) program
Which of the following is not considered a part of the radiation oncology team responsible for the department’s quality assurance?
a. Radiation therapist
b. Dosimetrist
c. Radiation oncologist
d. Medical oncologist
d. Medical oncologist
Safety and care in the assessment of pain, mobility, and other factors affecting the patient’s well-being are the responsibility of which of the following?
a. Radiation oncologist
b. Patient’s family
c. Radiation therapist
d. Radiation oncology nurse
c. Radiation therapist
The goal of radiation therapy planning is to deliver an evenly distributed radiation dose to the ________ while minimizing the dose to the normal surrounding tissue.
a. isodose lines
b. target volume
c. hinge angle
d. penumbra
b. target volume
Arrange the following tasks involved in delivering a dose of radiation therapy in the proper order.
I. Complete the treatment record.
II. Initiate the beam-on setting, and monitor the patient and equipment.
III. Align the field using lasers, light field, and surface landmarks.
IV. Prepare the room.
a. I, II, III, IV
b. II, I, III, IV
c. IV, II, I, III
d. IV, III, II, I
d. IV, III, II, I
Individual treatment doses may be defined as which of the following?
a. Fractionation
b. Protraction
c. Treatment field
d. Beam modifiers
a. Fractionation
Which of the following clinical situations do not lend themselves to the reproducible placement of localization marks? I. Mobile skin surfaces II. Elderly or obese patients III. Areas covered by dressings IV. Sloping surfaces such as the breast a. I and II b. I and III c. I, II, and III d. I, II, III, and IV
d. I, II, III, and IV
Methods of matching abutting fields include all except which of the following?
a. Penumbra method
b. Gaps
c. Feathering
d. Use of nondivergent beam edges
a. Penumbra method
Increased skin doses may be seen on patients caused by the interaction of the photon beam with material used in beam-shaping or modifying devices. Therefore, to prevent electron contamination, all devices must be secured at a minimum of ______ cm from the surface of the patient.
a. 3
b. 5
c. 15
d. 20
d. 20
In radiation therapy, which of the following refers to materials whose interactions with the radiation beam mimic those of tissue?
a. Wedge
b. Electron cutout
c. Internal or external shield
d. Bolus
d. Bolus
An anterior oblique and posterior oblique treatment field is an example of which of the following?
a. Arc therapy
b. Four-field box or brick
c. Wedge pair
d. Parallel opposed portals (POP)
d. Parallel opposed portals (POP)
Based partially on historic studies showing a reduction in treatment error associated with increased portal imaging, ________ portal imaging for radical cases has become an accepted but not universally implemented standard.
a. twice-daily
b. weekly
c. monthly
d. initial and final
b. weekly
A shifting field arrangement (feathering) often used in treatment of the brain and spinal cord is used primarily to _______________.
a. prevent “hot” spots
b. prevent “cold” spots
c. increase the dose of the gapped area
d. spare overlaying skin tissue
a. prevent “hot” spots
Which of the following opposing field techniques is specifically designed for treatment of the breast?
a. AP/PA arrangement
b. Tangential fields
c. Box technique
d. Right and left laterals
b. Tangential fields
Bolus comes in many forms and has many applications. Which of the following is not a material that bolus would be made from?
a. Vaseline gauze
b. Water-filled balloon
c. Superflab
d. Aluminum covered with paraffin wax
d. Aluminum covered with paraffin wax
Which of the following is one of the main advantages of a multileaf collimator (MLC)?
a. Correct for tissue inhomogeneity
b. Customize treatment volume
c. Eliminate skin sparing
d. Replace the need for interlock system of holding blocks
b. Customize treatment volume
With high-energy treatment units, compensators may be preferred over bolus because they ________________.
a. allow greater skin sparing
b. treat the target to a homogeneous dose
c. increase the dose to the inferior border
d. decrease the exit dose
a. allow greater skin sparing
Which of the following is the measurement of the angle between central rays of two intersecting treatment beams?
a. Wedge angle
b. Hinge angle
c. Isodose angle
d. Central axis angle
b. Hinge angle
Wedge systems used include which of the following? I. Global II. Universal III. Virtual a. I and II b. I and III c. II and III d. I, II, and III
c. II and III
Which of the following is used in shaping the field of an electron beam treatment?
a. MLC
b. Bolus
c. Aluminum
d. Cerrobend cutout
d. Cerrobend cutout
Where would the radiation therapist find the information regarding the status of the treatment unit?
a. Console
b. Interlock system of the unit
c. Patient record
d. Cameras in the room
a. Console
Patients are monitored during treatment delivery with megavoltage treatment units by using which of the following? I. Direct visual II. Closed-circuit television III. Two-way audio a. I and II b. I and III c. II and III d. I, II, and III
c. II and III
The cones used during electron beam therapy extend collimation in order to prevent which of the following?
a. Increased electron interactions in air
b. Increased dose in the build-up region
c. Decreased electron energy away from the virtual target
d. Decreased electron frequency away from the virtual target
a. Increased electron interactions in air
What is the melting point of Cerrobend?
a. 74° F
b. 100° F
c. 165° F
d. 212° F
c. 165° F
Which of the following two-field arrangements is considered parallel opposed?
a. Field 1 gantry = 0; Field 2 gantry = 90
b. Field 1 gantry = 310; Field 2 gantry = 130
c. Field 1 gantry = 90; Field 2 gantry = 280
d. Field 1 gantry = 180; Field 2 gantry = 10
b. Field 1 gantry = 310; Field 2 gantry = 130
