RTTT 105 Final Exam Prep

The jugulodiagastric nodes fall posterior to the cervical nodes. True False

False

In a treatment plan, the reduction of critical organ dose and unnecessary tissue irradiation can be accomplished by employing: 1. Shaped fields 2. Electron contamination 3. Overlapping fields a. 1 only b. 2 only c. 3 only d. 1, 2, and 3

a. 1 only

During radiotherapy of a pituitary tumor with the patient supine, the anterior field should enter: a. Above and behind the eyes b. Below and behind the eyes c. At the nasion d. At the coronal suture

a. Above and behind the eyes

The elevation of the arms above the head in a mantle field helps to move the: a. Axillary nodes away from the lateral chest wall b. Medistinal nodes above the diaphragm c. Lung parenchyma toward the rib cage d. Upper field closer to the lower field

a. Axillary nodes away from the lateral chest wall

The node of cloquet is located where? a. Deep femoral b. Coratid artery c. Tonsils d. Larynx

a. Deep femoral

The Testicular Lymphatics drain to where? a. Periaortics b. Internal and external illiacs & superior inguinals c. Celiac axis d. All of the above

a. Periaortics

The use of split beam technique in which half of the field is blocked has the advantage of: a. Preventing beam divergence b. Increasing the number of hot spots c. Avoiding areas of increased dose d. Decreasing the number of cold spots

a. Preventing beam divergence

A shifting field arrangement in the treatment of the brain and spinal cord is used primarily to: a. Reduce the possibility of hot spots b. Increase the tumor treatment volume c. Spare overlaying skin tissues d. Increase the back scatter factor

a. Reduce the possibility of hot spots

Individual treatment doses can be defined as: a. fractionation b. protraction c. penumbra d. beam modifiers

a. fractionation

During radiotherapy of the abdomen, the organ with the lowest dose tolerance is the: a. Kidney b. Stomach c. Liver d. Pancreas

a. kidney

The treatment area for tumors of the nasopharynx should include: 1. Supraclavicular node 2. Optical canal 3. Cervical nodes a. 1 and 2 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 3

b. 1 and 3 only

Since the slope of the thorax will cause a higher dose to the superior mediastinum with parallel opposed AP/PA fields, this dose is often reduced by the use of: a. Breast bridge b. Compensators c. Weighted fields d. Higher beam energies

b. Compensators

Which of the following gastrointestinal structures is not located within the peritoneum? a. Stomach b. Duodenum c. Splenic flexure d. Jejunum

b. Duodenum

The principal lymphatics responsible for drainage of the duodenum are: a. Gastric nodes b. Hepatic nodes c. Iliac nodes d. Mesocolic nodes

b. Hepatic nodes

Of the following areas which one is least likely to require the treatment of surrounding lymphatics? a. Prostate b. Larynx c. Breast d. Cervix

b. Larynx

Which of the following is the correct sequence of air passage in the upper respiratory tract? a. Nose, larynx, pharynx trachea b. Mouth, pharynx, larynx, trachea c. Nose, trachea, pharynx, larynx d. Mouth, larynx, trachea, pharynx

b. Mouth, pharynx, larynx, trachea

In using the TNM staging system, the nodal status is represented by the letter: a. T b. N c. M d. S

b. N

The irradiation of the extremities is most often accomplished by the use of: a. 90 degree arc field b. Parallel opposed fields c. 180 degree arc field d. Multiple field treatments

b. Parallel opposed fields

The lungs are covered by a transparent, double-layered serous membrane called the: a. Dura b. Pleura c. Meninges d. Lingula

b. Pleura

Which of the following areas will normally be treated using a single field megavoltage beam? a. Mediastinum b. Spinal cord c. Pituitary fossa d. Esophagus

b. Spinal cord

The junction of the transverse and descending colons takes place at the: a. Angular notch b. Splenic flexure c. Hepatic flexure d. Rectosigmoid junction

b. Splenic flexure

During the shrinking field technique for a supra glottis carcinoma, the site that will receive the highest dose is the: a. Lingual tonsil b. Supraglottic region c. Cervical lymph nodes d. Parotid gland

b. Supraglottic region

The most common form of pretransplant conditioning in a bone marrow transplant is: a. Chemotherapy alone b. Total body irradiation c. Combination high dose chemotherapy and TBI d. None of the above

c. Combination high dose chemotherapy and TBI

The highest portion of the normal adult stomach sitting just below the left diaphragm is the: a. Pylorus b. Cardiac orifice c. Fundus d. Greater curvature

c. Fundus

A four field box technique is most often employed for the treatment of: a. Orbital tumors b. Brain metastases c. Gynecologic malignancies d. Bronchopulmonary lesions

c. Gynecologic malignancies

External beam treatment units include: I. implant therapy II. cobalt 60 III. linear accelerators a. I and II b. I and III c. II and III d. I, II, and III

c. II and III

The vocal cords are housed in a structure formed by a number of singular and paired cartilages called the: a. Pharynx b. Trachea c. Larynx d. Bronchi

c. Larynx

The counter part of the timer setting of a cobalt radiotherapy unit is most similar to the ____________ of a linear accelerator. a. Compensator b. Dose calibrator c. Monitor unit d. Pulse indicator

c. Monitor unit

In a lateral wedged field for the treatment of the rectum the preferred patient position is: a. Erect b. Supine c. Prone d. 30 oblique

c. Prone

The treatment of the para-aortic area is most likely for: a. Carcinoma of the gall bladder b. Squamous cell lung carcinoma c. Seminoma d. Cancer of the oral cavity

c. Seminoma

When treating a mediastinum with parallel opposed 10 x 15 cm fields to the midline, which of the following structures is most likely to be at greatest risk first? a. Heart b. Sternum c. Spinal cord d. Skin

c. Spinal cord

During the course of a treatment, a patient begins to sneeze vigorously. The radiation therapist should: a. Watch for more serious symptoms to appear b. Continue the treatment but report the incident c. Stop the treatment and check the field alignment d. Increase treatment time by 10%

c. Stop the treatment and check the field alignment

The verification for ensuring that radiation beams are inside the predetermined treatment volume is determined by: a. Visual inspection b. Fluoroscopic examination c. Taking a port film d. Light field coherence check

c. Taking a port film

The most common treatment technique for carcinoma of the breast involves: a. Electron arc therapy b. Rotational therapy c. Tangential opposed fields d. Opposed AP-PA fields

c. Tangential opposed fields

Multileaf collimators are designed to reduce the use of: a. the klystron b. patient support assembly c. cerrobend custom-made blocks d. all of the above

c. cerrobend custom-made blocks

During pelvic radiotherapy the use of which of the following is beneficial for the displacement of the small bowel outside of the pelvic volume? 1. Belly board 2. PA position 3. Full urinary bladder a. 1 only b. 2 only c. 3 only d. 1, 2, and 3

d. 1, 2, and 3

The purpose of total body irradiation of the bone marrow is to eradicate: 1. Malignant cells 2. A defective immune system 3. Defective hematopoietic system a. 1 and 2 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 3

d. 1, 2, and 3

Which of the following is an example of an irregular treatment field? 1. Inverted Y 2. Hockey Stick 3. Mantle a. 1 only b. 2 only c. 3 only d. 1, 2, and 3

d. 1, 2, and 3

The primary focus of chemotherapy is to prevent cancer cells from: I. multiplying II. invading adjacent tissue III. developing metastasis a. I and II b. I and III c. II and III d. I, II, and III

d. I,II, and III

A typical linear accelerator consists of a: I. drive stand II. gantry III. treatment couch IV. console electronic cabinet a. I b. I and II c. III and IV d. I, II, III, and IV

d. I,II,III and IV

The radiation therapist's duties include: I. administration of the radiation treatment II. care and emotional support during treatment III. observation of the patient's clinical progress IV. education of the patient regarding treatment a. I and II b. I and III c. I, III, and IV d. I, II, III, and IV

d. I,II,III and IV

All of the following are reasons for monitoring the patient EXCEPT: a. Patient safety b. Emotional support c. Treatment accuracy d. Record keeping

d. Record keeping

Safety considerations involved with a linear accelerator may include: a. electrical b. mechanical c. radiation safety d. all of the above

d. all of the above

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: a. arc therapy b. four field box/trick c. wedged pair d. parallel opposed portals (POP)

d. parallel opposed portals