RTE2473C – Quality Assurance is a 2-credit radiography course covering quality assurance and quality control in diagnostic imaging: the systematic testing, monitoring, and corrective action that keeps an imaging department producing diagnostic images at the lowest reasonable radiation dose. Content typically includes dynamic imaging (fluoroscopy), image evaluation for artifacts, quality control testing, and departmental quality assurance programs.
The course sits late in a radiography program, after students have learned exposure, imaging, and procedures, and it reframes that knowledge from the perspective of the department rather than the individual examination: is the equipment performing to specification, are images consistently diagnostic, is dose being controlled, and how would you know?
Content covers quality assurance versus quality control — the program and the tests; regulatory framework — state radiation control, accreditation, and Joint Commission expectations; radiographic equipment testing — kVp accuracy, timer accuracy, mA linearity and reproducibility, half-value layer, and beam alignment; automatic exposure control testing; fluoroscopic quality control — dose rates, resolution, and image intensifier or flat panel performance; image receptor and display — digital receptor uniformity, monitor calibration, and display consistency; image quality evaluation — spatial resolution, contrast, noise, and phantom testing; artifacts — identification, causes, and correction across digital systems; exposure indicator monitoring — and dose creep in digital radiography; repeat and reject analysis — methodology and interpretation; radiation safety and dose management — ALARA and patient dose tracking; PACS and informatics — image integrity and workflow quality; documentation and recordkeeping; and continuous quality improvement methods.
Florida demand for radiologic technologists is strong and statewide, driven by a large hospital sector, an extensive outpatient imaging market, and a large older-adult population. Technologists who add advanced modalities — CT and MRI in particular — or who move into PACS administration raise their earnings substantially, and quality-oriented technologists are the ones who tend to be given those opportunities.
The most important contemporary content in this course, and a genuine change from the film era. With film, overexposure was self-correcting: too much exposure produced a dark, unusable radiograph and the technologist adjusted. Digital receptors have a wide dynamic range and the software normalizes the image, so an overexposed digital image can look excellent — in fact often better, because more photons means less quantum noise.
The consequence is dose creep: technique factors drift upward over time because nothing in the image gives feedback, and patients receive more radiation than necessary for images that appear fine. This is precisely why the exposure indicator exists and why monitoring it is a quality control responsibility rather than a formality. A technologist who ignores the indicator has no way to know they are overexposing.
Two related points. Retakes are additional patient dose, which makes repeat analysis a patient safety activity, not a productivity metric. And the professional obligation runs the other way too: underexposure produces quantum mottle, which can obscure pathology and force a repeat. The target is the correct exposure, and only the indicator tells you where you are.
The framing that makes a memorization-heavy course coherent. Quality control tests are easy to learn as a list of procedures and tolerances and hard to retain that way. Each test exists because a specific failure would harm a patient or produce a non-diagnostic image:
Learn the reason and the tolerances become memorable rather than arbitrary — and this is also how the ARRT examination frames its questions.
The organizational insight worth carrying into practice. A repeat and reject analysis measures how many images are discarded and why, and it is genuinely valuable: it identifies equipment faults, training gaps, and positioning problems, and it quantifies avoidable patient dose.
It fails completely when technologists believe the data will be used against them individually. People delete repeats quietly, misattribute causes, or stop recording, and the department loses its most useful quality signal while believing everything is fine. This is the same dynamic as safety reporting in aviation and industry, and the resolution is the same: analyze patterns and systems, not individuals.
Practical implication for a new technologist: record your repeats accurately, including your own, and understand that a department where nobody reports repeats is not a department without repeats. Common causes cluster predictably — positioning, patient motion, exposure factors, and equipment — and each points to a different corrective action.
Practical advice that costs nothing. Most radiography students learn quality control from a textbook and never watch the tests performed, which makes the material abstract and forgettable. Yet the tests happen on a schedule at every clinical site, run by the QC technologist or the visiting medical physicist during the annual survey.
Ask your clinical instructor when QC is done and whether you can observe. Watching a physicist measure half-value layer or check AEC calibration converts an hour of abstraction into something you understand permanently. It is also good professional exposure — the people who run QC are often the lead technologists and managers who later make hiring decisions, and expressing interest in quality marks you as a serious candidate for advancement.
A state-specific requirement students sometimes discover late. ARRT certification is a national credential earned by graduating from an accredited program and passing the examination. Florida requires a separate state license to practice, issued through the Department of Health's radiologic technology program, and licensure has its own application, fees, and renewal cycle. Working without it is not permitted regardless of ARRT status.
Two practical points. Apply early, since processing takes time and employers cannot let you work unlicensed. And note that Florida issues different categories and that advanced modalities may carry their own requirements — verify current rules with the Florida Department of Health, Bureau of Radiation Control, rather than relying on a textbook or this guide, since they are periodically revised.
RTE2473C sits late in a JRCERT-accredited radiography program, after the exposure and imaging sequence (RTE1418C, RTE1457C), procedures (RTE1503C/1513C/1523C), RTE2385C (radiation biology), RTE2613 and RTE2623 (radiologic physics), and alongside the clinical education sequence. Related upper-division content appears at RTE4474 (quality management) in bachelor's completion programs — a 4000-level course that does not substitute for this one, and vice versa.
SCNS equivalency applies to the same number at the same level, never across numbers. This matters less than usual within radiography for a structural reason worth understanding: JRCERT-accredited programs are not designed to be assembled from courses taken at different institutions — clinical placement, program accreditation, and ARRT eligibility are all program-level. Transferring mid-program almost always means repeating substantial work. Choose an accredited program and finish it.
Generated September 1, 2026 · Updated September 1, 2026