Introduction to Radiologic Technology - Comprehensive Flashcards

Course Information and Class Policies

  • Course Description: A comprehensive prologue to Radiologic Technology education and practice, providing an understanding of the scope, outputs, and practices of radiological sciences. The course outlines the practitioner's role and professional responsibilities within the health care delivery system, alongside principles, practices, and policies of health care organizations.

Healthcare Delivery Environments and Settings

  • Hospital: An institution providing medical and surgical treatment as well as nursing care for sick or injured individuals.

  • Clinic: An establishment or specialized hospital department where outpatients receive medical treatment or advice, particularly of a specialist nature.

  • Mental Health Facility: Facilities where psychiatric patients have traditionally received long-stay care (formerly designated as asylums or mental hospitals).

  • Hospice: A specialized care facility or program providing physical comfort as well as emotional, social, and spiritual support for individuals nearing the end of life.

  • Ambulatory / Outpatient Care: Medical services rendered on an outpatient basis that do not require formal admission to a hospital or healthcare facility.

  • Preventive / Routine Care: The implementation of proactive healthcare measures aimed at preventing diseases before they occur.

  • Home Health Care: A broad range of healthcare services administered directly in a patient's home to treat illnesses or injuries. It serves as an inexpensive, convenient, and effective alternative to hospital care.

  • Telemedicine: The application of electronic information and communication technologies to deliver and support healthcare services when distance separates participants, enhancing the overall efficiency of radiology and healthcare operations.

Human Needs, Psychology, and Critical Thinking

  • Individual Personality: A unique combination of habitual patterns, behavioral qualities, and personal attitudes combined with individual problem-solving approaches, values, ambitions, and experiences.

  • Abraham H. Maslow's Hierarchy of Human Needs:

    • First Level (Physiological Needs): Essential to life and primary in importance. Includes air, water, food, shelter, sleep, clothing, and the urge/will to reproduce.

    • Second Level (Safety Needs): Crucial for growth and development. Includes personal security, employment, resources, health, and property.

    • Third Level (Love and Belonging): Inherent human desire to give and receive love, return affection, build friendships, experience intimacy, and foster family/social connections.

    • Fourth Level (Esteem Needs): The requirement to feel valued, accepted, respected, and appreciated to sustain self-esteem, self-respect, personal strength, freedom, and a distinct identity.

    • Fifth Level (Self-Actualization Needs): The desire to realize one's full potential. Involves creativity, self-expression, achievement, and engaging in work that is useful, productive, and valuable to others.

  • Key Components of Personal Well-being:

    • Physiologic Needs: Achieving optimal learning performance requires optimal physical self-care, focusing on nutrition, sleep, recreation, and exercise.

    • Psychologic Care: Maintaining a healthy equilibrium between rational thinking and emotional expression.

    • Emotionality: The state or quality of maintaining sound emotional balance.

    • Objectivity: The capacity to analyze and interpret situations from an unbiased perspective rather than through subjective feelings.

  • Stress and Conflict Management:

    • Stress: A psychological or physiological response occurring when individual or external behaviors fail to yield expected or desired outcomes.

    • Conflict: Tension resulting from incompatible needs, drives, or disagreements internally or between individuals.

  • Learning Strategies and Memory Mastery:

    • Intentional Memorization: The deliberate pursuit of knowledge within a structured, planned study environment. It consists of two elements:

    • Perceptions: Direct observations and the resulting mental images.

    • Attention: Concentrating focused effort on a specific activity to the exclusion of competing distractions.

    • Memory Types:

    • Long-Term Memory: Permanent, stable storage of information.

    • Short-Term Memory: Transient, fleeting memory storage that fades rapidly without reinforcement.

  • Critical Thinking in Radiologic Technology:

    • Critical Thinking Definition: The ability to analyze, evaluate, and interpret situations from diverse perspectives.

    • Factors That Hinder Critical Thinking:

    • Background beliefs

    • Frozen mind-sets

    • Faulty reasoning

    • Emotional baggage

    • Unquestioned group loyalty

    • Essential Attributes of a Critical Thinker:

    • Humility

    • Respect for others

    • Self-awareness

    • Continuous honing of analytical skills

Hospital Organization and Administrative Structure

  • Foundational Organizational Concepts:

    • Philosophy: The study of the fundamental nature of knowledge, reality, and existence within an institutional framework.

    • Vision: The capability to envision and plan for the future using imagination and strategic wisdom.

    • Mission: The explicit, overarching core task or duty assigned to or adopted by an institution.

  • Administrative Services Branch:

    • Governing Board: The highest decision-making body in an organization, composed of directors who formulate policy and offer strategic oversight.

    • Hospital Administration: The leadership and operational management sector responsible for overseeing public or private health systems, hospitals, and medical networks across primary, secondary, and tertiary care sectors.

    • Admissions Office: Department responsible for processing and managing patient admissions.

    • Information Technology (IT) Department: Oversees computer systems, network infrastructures, and software solutions throughout the facility.

    • Procurement Department: Manages the sourcing, purchasing, and acquisition of hospital equipment, devices, and consumable supplies.

    • Accounting Department: Tracks, records, and reports all institutional financial transactions and cash flows.

    • Support Services: Ancillary operations that perform foundational work essential to enabling primary medical and nursing care.

    • Human Resources (HR): Manages personnel recruitment, hiring, employee relations, and benefit/compensation packages required to retain qualified staff.

  • Medical Services Branch:

    • Physicians / Doctors: Licensed medical professionals responsible for diagnosing and treating diseases and injuries.

    • Allied Health Professionals: Healthcare providers who deliver diagnostic, preventive, therapeutic, and technical services vital to complete patient care.

    • Clinical / Medical Services: Departments engaged in direct medical treatment and diagnostic testing of patients.

    • Clinical Support Services: Staff personnel providing direct assistance to medical practitioners within specialized diagnostic and treatment units.

Principles of Patient Care and Ergonomics

  • Customer Service Targets in Healthcare:

    • Outside Customers: Individuals external to the facility, including patients, patient families, referring physicians, and the broader community.

    • Inside Customers: Internal staff members, including personnel from other departments (e.g., Emergency, Nursing units), co-workers, and radiologists.

  • Essential Requirements for Optimal Patient Care:

    • Practice high-quality radiographic techniques incorporating strict radiation safety to prevent further injury or medical complications.

    • Prevent the transmission of infectious diseases and external injury to others.

    • Prevent hazardous, disabling, or crippling complications arising from existing conditions.

    • Alleviate physical and emotional suffering by comforting patients and providing empathetic support.

    • Provide diagnostic services efficiently and economically while maintaining uncompromised diagnostic image quality.

  • Patient Identification and Safety Protocols:

    • Immediately verify and match examination request forms against the patient's identification wristband prior to initiating any procedure.

  • Ergonomic Principles for Moving and Lifting Patients:

    • Establish correct body alignment and posture before attempting to move or lift a patient.

    • Place feet shoulder-width apart to create a wide base of support and maintain stability.

    • Hold the patient as close to your body as possible to centralize total weight and eliminate unnecessary muscle strain.

    • Stoop at the working level by bending at the knees while keeping the spine straight.

    • Slide or push objects/patients rather than lifting whenever feasible.

    • Seek physical assistance whenever a patient exceeds your individual lifting capability.

    • Coordinate multi-person moves by executing lifting motions simultaneously in response to a clear signal.

Aseptic Technique and Sterilization Methods

  • Sterilization Core Concept: The complete removal or absolute destruction of all living microorganisms, including bacterial spores. (Disinfection differs from sterilization because disinfection does not reliably destroy spores).

  • Core Rules of Sterile Technique:

    • An item is strictly either sterile or unsterile; no intermediate state exists. Any item of doubtful sterility must be treated as unsterile.

    • Sterile items must remain fully covered until the exact moment of use.

    • Touch only the outer wrapper or edge when opening sterile packages or glove wrappers.

    • Handle sterile materials exclusively using sterile instruments or sterile gloved hands.

    • Never return an item to a sterile container once it has been removed.

    • Use sterile transfer forceps to extract items from sterile containers. Only the portion of the container and forceps immersed in or covered by disinfectant solution is considered sterile. Hold forceps tips pointed downward at all times.

    • If a sterile container becomes contaminated, dispose of or re-sterilize it immediately; if immediate action is impossible, clearly label or turn the cover to indicate contamination.

    • Never reach directly over a designated sterile field.

    • Edges of sterile drapes or towels are considered contaminated once they make contact with unsterile surfaces.

    • Keep non-sterile instrument handles outside designated sterile fields.

    • Pour sterile solutions cleanly to ensure no contact occurs between the bottle lip and the receiving container.

  • Specific Sterilization Modalities:

    • Moist Heat (Steam): Utilizes an Autoclave operating at 121 ∘C121\,^\circ\text{C} for 15 minutes15\,\text{minutes}. Effectively destroys all microbes and endospores. Used for culture media, surgical dressings, and durable equipment.

    • Dry Heat: Utilizes a Hot Air Oven operating at 160–170 ∘C160\text{--}170\,^\circ\text{C} for 2 hours2\,\text{hours}. Causes cellular destruction via protein denaturation. Used for dry glassware and metallic instruments.

    • Filtration: Employs membrane filters with pore sizes of 0.22 μm0.22\,\mu\text{m}. Physically traps and removes microbes from heat-sensitive liquids.

    • Ionizing Radiation: Employs Gamma rays or high-energy Electron beams. Used for terminal sterilization of pre-packaged, single-use disposable medical supplies.

    • Gas Sterilization: Uses Ethylene Oxide (EtO) gas. Designed for heat- and moisture-sensitive delicate electronic or optical equipment.

    • Chemical Sterilization: Uses liquid sterilants such as Glutaraldehyde or Hydrogen Peroxide solutions. Applied to high-level disinfection/sterilization of flexible endoscopes and plastic instruments.

Radiography Curriculum and Educational Domains

  • Curriculum Governance:

    • Formulated by educators and clinical technologists serving on the curriculum revision committee of the American Society of Radiologic Technologists (ASRT).

    • The draft curriculum is distributed nationwide for professional review, evaluation, and formal adoption.

  • Educational Accreditation:

    • Definition: A structured process of external quality control evaluating educational institutions and programs.

    • Institutional Accreditation: Evaluates the overall quality, integrity, and financial/administrative stability of an entire educational institution.

    • Specialized / Programmatic Accreditation: Evaluates specific educational programs (e.g., Radiologic Technology) within an institution.

    • Joint Review Committee on Education in Radiologic Technology (JCRT): The recognized specialized accrediting body responsible for assessing quality and integrity in Radiologic Technology programs.

  • Core Academic Subjects in Radiography Curriculum:

    • Introduction to Radiography

    • Clinical Education

    • Medical Ethics and Law

    • Principles of Diagnostic Imaging

    • Imaging Equipment

    • Human Structure and Function

    • Medical Terminology

    • Radiographic Positioning and Procedures

    • Principles of Radiation Biology and Radiation Protection

    • Radiographic Image Evaluation

    • Pathology

    • Patient Care

    • Quality Assurance

  • Pre-Clinical Simulation:

    • Students practice positioning and exposure techniques in laboratory settings utilizing anthropomorphic phantoms, which exhibit X-ray attenuation and scattering characteristics equivalent to human tissue.

  • Domains of Clinical Learning:

    • Cognitive Learning: Acquisition of theoretical knowledge, scientific principles, and facts delivered through classroom lectures and academic instruction.

    • Affective Learning: Development of professional attitudes, ethical values, interpersonal behaviors, and emotional maturity.

    • Psychomotor Learning: The practical, hands-on application of previously learned theoretical knowledge within actual clinical environments.

  • Progression of Clinical Participation:

    • Passive Participation: The student directly observes the registered technologist perform clinical procedures and assists with minor setup duties.

    • Active Task Performance: The student performs delegated clinical duties under direct supervision after demonstrating basic technical familiarity.

    • Independent Clinical Performance: The student executes complete radiographic procedures independently under the appropriate supervision of a registered technologist.

    • Clinical Competency Evaluation: Standardized performance testing used to objectively measure and verify a student radiographer's clinical proficiency.

Science of Radiology, History, and Imaging Modalities

  • Historical Origins:

    • Discovered on November 8, 1895, by the German physicist Wilhelm Conrad Roentgen.

    • Roentgen's discovery enabled non-invasive visualization of internal anatomical structures, giving rise to radiology as a distinct medical specialty.

  • Basic Principles of X-Ray Imaging:

    • X-rays are high-energy form of electromagnetic radiation capable of penetrating matter.

    • Images are produced on an image receptor due to differential absorption as the beam passes through tissues of varying densities (e.g., bone, soft tissue, fat, air).

  • Primary Diagnostic and Therapeutic Imaging Modalities:

    • Diagnostic X-Ray / Radiography: Standard projectional imaging utilized primarily for identifying bone fractures, joint abnormalities, pulmonary infections (e.g., pneumonia), and dental pathologies.

    • Fluoroscopy: Real-time dynamic X-ray visualization used to evaluate functional body processes, catheter guidance, and gastrointestinal studies.

    • Computed Tomography (CT): Utilizes a rotating X-ray tube and digital detector array to acquire multiple cross-sectional images that are reconstructed by a computer into detailed 2D slices or 3D anatomical models. Superior for trauma, oncology, and vascular evaluations.

    • Magnetic Resonance Imaging (MRI): Employs powerful magnetic fields and radiofrequency (RF) pulses to generate high-resolution cross-sectional images of body tissues without using ionizing radiation. Superior for soft tissue, neurological, spinal, and musculoskeletal imaging. Equipment includes closed-bore and open MRI systems.

    • Ultrasound (Ultrasonography): Uses high-frequency sound waves reflecting off tissue boundaries to create dynamic structural and vascular images. Completely non-invasive with zero ionizing radiation exposure. Widely used in obstetrics, abdominal imaging, echocardiography, and image-guided biopsies.

    • Nuclear Medicine: Involves administration (injection, ingestion, or inhalation) of radiopharmaceuticals that concentrate in target organ systems. Gamma cameras detect emitted radiation to evaluate tissue function. Positron Emission Tomography (PET) measures metabolic activities and is commonly combined with CT (PET-CT) for oncologic management.

    • Interventional Radiology (IR): A subspecialty utilizing real-time image guidance (fluoroscopy, CT, ultrasound) to perform minimally invasive diagnostic and therapeutic procedures (e.g., vascular stenting, angioplasty, tumor ablation, needle biopsies).

  • Core Responsibilities of Radiologic Technologists:

    • Operating complex diagnostic imaging equipment safely and accurately.

    • Preparing and positioning patients correctly while maintaining clear communication.

    • Applying ALARA principles and radiation protection measures (lead shielding, beam collimation) to safeguard patients, self, and others.

    • Executing image quality control to verify diagnostic clarity before sending studies to radiologists.

    • Assisting interventional radiologists during sterile image-guided interventional procedures.

Professional Governance, Credentialing, and Career Pathways

  • Professional Organizations (Philippines):

    • PART: Philippine Association of Radiologic Technologists, Inc.

    • PSGRT: Philippine Society of Government Radiologic Technologists

    • PADFRT: Philippine Association of Deans and Faculty of Radiologic Technology

  • Licensure Examination Prerequisites:

    • Completion of all formal academic requirements established by the Commission on Higher Education (CHED).

    • Must hold Filipino citizenship.

    • Must reside in the Republic of the Philippines.

    • Must have no record or conviction of moral turpitude or crime.

  • Mandatory Continuing Professional Development (CPD) Credit Units (CUs) Schedule:

    • 2024 Requirement: 15 Credit Units15\,\text{Credit Units}

    • 2025 Requirement: 20 Credit Units20\,\text{Credit Units}

    • 2026 Requirement: 30 Credit Units30\,\text{Credit Units}

    • 2027 and Onward Requirement: 45 Credit Units45\,\text{Credit Units}