Radiation Therapist
Posted Sep 17, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
How do you work with the dosimetrist and physician when something in a treatment plan doesn't look right to you?
What they are checking: Whether they speak up about concerns as a real safety check in the team rather than simply following the plan.
Tell me about a time you helped a frightened patient through their first treatment.
What they are checking: Whether they can calm patients who may be afraid, since staying still matters for accurate treatment.
What would you do
You notice the patient's setup doesn't match the plan by more than tolerance. What do you do?
What they are checking: Whether they stop treatment and escalate rather than pushing through to stay on schedule, since dose errors can't be undone.
A patient getting radiation to the head and neck tells you they can barely swallow and have lost weight. What do you do?
What they are checking: Whether they watch for side effects every day and alert the nurse or physician so problems are managed early.
This is a small team working Monday, Wednesday and Friday. How do you hand off a patient's treatment details to the therapists covering the other days?
What they are checking: Whether they document and communicate clearly so treatment stays consistent across therapists.
About the work
This team uses tattoo-free, mark-free setups. How do you make sure a patient is positioned correctly without permanent marks?
What they are checking: Whether they understand surface guidance and image-based setup well enough to trust it and catch when it's off.
Walk me through what you check on a pre-treatment image before you deliver the beam.
What they are checking: Whether they can spot shifts in anatomy or position and know when to stop and get the physician or physicist.
What daily quality checks do you do on the linear accelerator, and what would make you take it out of service?
What they are checking: Whether they take machine QA seriously and know the limits that make it unsafe to treat.
How do you confirm patient identity and the correct treatment site every single day?
What they are checking: Whether they follow time-out and ID steps without shortcuts, even with patients they see daily.
How do you keep treatment records accurate, and what goes in them?
What they are checking: Whether their records support safe, consistent care and meet legal and regulatory standards.
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Practice this out loudThe full job description
As published by SSM Health.