CLLRT Technician Study Guide

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Core Competency Areas

The exam tests for 'Knowledge, Skills, and Abilities' (KSAs) in the following core competency areas:

8%The Profession and the Professional

15%The Framework of Radiographic Equipment

5%Essential Mathematics for Limited Machine Operators

12%Foundational Physics for Radiography

8%The Safety Precautions of Radiation

12%Introduction to Anatomical Positioning

2%Image Acquisition & Evaluation

5%Medicolegal Aspects of Radiography

12%Safety Implementation and Infection Control

12%Evaluation of Patients in Acute Situations

5%Drug Administration

4%Bone Densitometry


Topical Breakdown

Use the following topical guide to help you prepare for the exam:

I.  Overview of Limited Radiography

a.  The Profession and the Professional (8%)

  • Radiography
  • Limited X-Ray machine operator
  • Certification requirements
  • Standard duties of a Limited X-ray Machine operator

b.  The Framework of Radiographic Equipment (15%)

  • X-ray room
  • Radiographic table, console control, transformer cabinet
  • Positioning of the X-ray tube and beam

c.  Essential Mathematics for Limited Machine Operators (5%)

  • Fundamental mathematical principles
  • Mathematics applied to radiography
II.  X-Ray Science and Safety

d.  Foundational Physics for Radiography (12%)

  • Matter, energy, electromagnetic energy
  • Electromagnetic induction and transformers
  • X-ray production and digital Imaging
  • Formulating X-ray techniques

e.  The Safety Precautions of Radiation (8%)

  • Fundamental radiation safety
  • Radiation quantification
  • Effects of radiation exposure
  • Radiation safety factors
III.  Radiographic Anatomical Positioning and Pathology

f.  Introduction to Anatomical Positioning (12%)

  • Skeletal positioning of the upper limb, shoulder girdle, lower limb, pelvis, spine, bony thorax, chest, abdomen, skull, facial bones
  • Pathological aspects of radiology

g.  Image Acquisition & Evaluation (2%)

  • Viewing radiographs
  • Systematic image review
  • Image identification and markers
IV.  Patient Care and Professionalism

h.  Medicolegal Aspects of Radiography (5%)

  • Ethics concepts and values
  • Legal considerations
  • Professional communication
  • Proper documentation of medical records

i.  Safety Implementation and Infection Control (12%)

  • Workplace safety
  • Accidents and incident reports
  • Infection control, infectious disease, disease prevention
  • Standard precautions and surgical asepsis

j.  Evaluation of Patients in Acute Situations (12%)

  • Obtaining a medical history
  • Acute situations and physiological needs
  • Management of patient’s current physical status
V.  Additional Clinical Skills

k.  Drug Administration (5%)

  • The role in medication administration and documentation
  • Routes of administration, medication properties, medication adverse effects

l.  Bone Densitometry (4%)

  • Comparisons of DXA and conventional radiography
  • Principles of DXA
  • Numerical measurements of Bone Densitometry


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