ARRT BOARD EXAM Latest Update 2024 -2025 Actual Exam 1150 Questions and 100% Verified Correct Answers Guaranteed A+ 1 in how many women is breast cancer diagnosed? - CORRECT ANSWER: About every 1 in 8 women A PAB field is used to increase the dose to what lymph node group? - CORRECT ANSWER: Level 3 axillary nodes A radiation therapist who is 37 years old should not have a lifetime effective dose exceeding: - CORRECT ANSWER: 370 mSv A Stage III skin reaction would be characterized by: - CORRECT ANSWER: Moist desquamation A stochastic effect is best defined as one in which: - CORRECT ANSWER: Probability is dose -dependent A whole body dose of 100 -1000 cGy would cause symptoms from which syndrome? - CORRECT ANSWER: Hematopoietic Abdominal weight gain, moon face, buffalo hump & hypertension are all signs & symptoms of what endocrine disorder? - CORRECT ANSWER: Cushing's syndrome According to Elizabeth Kubler -Ross, what is the final stage of dealing with death/loss? - CORRECT ANSWER: Acceptance According to NRC regulations, what color must the standard radiation symbol background be? - CORRECT ANSWER: Yellow After acute whole -body exposure, in what stage will the individual be relatively symptom free? - CORRECT ANSWER: Latent After testing the collimator rotation around the isocenter, the resulting exposure on the film will have the appearance of: - CORRECT ANSWER: A star After what age should women have annual mammograms? - CORRECT ANSWER: 40 After what dose does xerostomia occur? - CORRECT ANSWER: 1,000 cGy After what dose may permanent azoospermia occur in men being treated for testicular cancer? - CORRECT ANSWER: 2 to 3 Gy After what radiation dose to the whole organ can cataracts occur? - CORRECT ANSWER: 1,000 cGy Anal carcinomas are typically what histology? - CORRECT ANSWER: Squamous cell carcinoma Approximately how many cases of skin cancer are diagnosed each year? - CORRECT ANSWER: >1,000,000 As the treatment volume increases, what happens to tolerance doses? - CORRECT ANSWER: Decrease Aside from gynecological & some pelvic cancers, in what other area are HPV -related cancers often seen? - CORRECT ANSWER: Head & neck At minimum, verification imaging should be completed: - CORRECT ANSWER: At the beginning of the course of treatment or when changes are made to patient positioning or the treatment plan At what age does the American Cancer Society recommend screening for colon cancer? - CORRECT ANSWER: 50 At what age is the peak incidence of pediatric medulloblastoma? - CORRECT ANSWER: 5 years At what angle to the table should a wheelchair be placed? - CORRECT ANSWER: 45˚ At what dose does destruction of epithelial cells in the stomach occur & what does this result in? - CORRECT ANSWER: 1000 -2000 cGy; nausea At what dose does erythema typically occur? - CORRECT ANSWER: 2,000 -3,000 cGy At what vertebral level is the hyoid bone located? - CORRECT ANSWER: C3 Autologous bone marrow transplants are when the bone marrow donor is: - CORRECT ANSWER: The patient Average TAR is used when calculating monitor units for which type of treatment fields? - CORRECT ANSWER: Rotational fields Brachytherapy treatment to the breast is an example of: - CORRECT ANSWER: Interstitial brachytherapy By how many MeV per cm in unit density tissue is electron energy reduced? - CORRECT ANSWER: 2 By how many number of methods prior to each daily treatment must the patient be identified? - CORRECT ANSWER: Two By which two lymph node routes does ovarian cancer spread most often? - CORRECT ANSWER: Para -aortics & pelvic Calculate the gap needed if Field 1 is 10 cm in length & Field 2 is 20 cm length; both fields are treated at 100 cm a depth of 6 cm with a 6 MV beam. - CORRECT ANSWER: G = d[(0.5F1/SSD1) + (0.5F2/SSD2)]; 0.9 cm Calculate the gap required for adjacent fields if Field A is length 12 cm & Field B is length 20 cm, treated at 100 cm SSD with 6 MV photon beams to a depth of 5 cm. - CORRECT ANSWER: G = d(1/2FA/SSD + 1/2FB/SSD); 0.8 cm Calculate the MU for an isocentric AP/PA treatment; 180 cGy prescribed to 9 cm depth; TMR = 75.2 - CORRECT ANSWER: 90/0.752 = D; 120 MU per field Calculate the MU needed for a patient being treated AP/PA at SSD 100 cm to midplane; Sc = 1.08, Sp = 1.007, PDD = 76%; tumor dose to target is 180 cGy - CORRECT ANSWER: Dose/Sc x Sp x PDD = 109 MU Calculate the skin gap needed to ensure the fields match at 5 cm depth when Field A has a field length of 14 cm & Field B has a field length of 32 cm, treated at 100 cm SSD - CORRECT ANSWER: 1.15 cm {G = [d(0.5F1/SSD) + (0.5F2/SSD)]} Caution - Radiation Area signs are used to identify areas in which radiation workers may receive: - CORRECT ANSWER: 5 mrem/hr Choosing to scan only what is required for patient imaging is an example of which principle of ALARA? - CORRECT ANSWER: Time Daily image quality tests for the CT simulator include verifying CT units for: - CORRECT ANSWER: Water Damage to what type of cells is the earliest appearance of radiation damage to the skin? - CORRECT ANSWER: Basal
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