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This chapter introduces you to the electrocardiograph instrument and how to administer an electrocardiogram. You will also learn how to apply electrocardiograph electrodes and wires, operate the instrument, and troubleshoot problems that can occur while recording the heart's electrical activity. | 50 Diagnostic Imaging 50.1 Explain what X-rays are and how they are used for diagnostic and therapeutic purposes. 50.2 Compare invasive and noninvasive diagnostic procedures. 50.3 Carry out the medical assistant’s role in X-ray and diagnostic radiology testing. 50.4 Discuss common diagnostic imaging procedures. Learning Outcomes 50.5 Describe different types of radiation therapy and how they are used. 50.6 Explain the risks and safety precautions associated with radiology work. 50.7 Relate the advances in medical imaging to EHR. Learning Outcomes Introduction Diagnostic radiology Screening Clinical diagnosis Medical assistant Role during testing Safety issues Proper handling and storage of films Preparation and instruction of patients Learning Outcome: 50.1 Explain what X-rays are and how they are used for diagnostic and therapeutic purposes. Diagnostic radiology is a valuable tool. Brief History of the X-Ray Discovered in 1895 by Wilhelm Konrad Roentgen X-ray High . | 50 Diagnostic Imaging 50.1 Explain what X-rays are and how they are used for diagnostic and therapeutic purposes. 50.2 Compare invasive and noninvasive diagnostic procedures. 50.3 Carry out the medical assistant’s role in X-ray and diagnostic radiology testing. 50.4 Discuss common diagnostic imaging procedures. Learning Outcomes 50.5 Describe different types of radiation therapy and how they are used. 50.6 Explain the risks and safety precautions associated with radiology work. 50.7 Relate the advances in medical imaging to EHR. Learning Outcomes Introduction Diagnostic radiology Screening Clinical diagnosis Medical assistant Role during testing Safety issues Proper handling and storage of films Preparation and instruction of patients Learning Outcome: 50.1 Explain what X-rays are and how they are used for diagnostic and therapeutic purposes. Diagnostic radiology is a valuable tool. Brief History of the X-Ray Discovered in 1895 by Wilhelm Konrad Roentgen X-ray High energy level Short wavelength Learning Outcome: 50.1 Explain what X-rays are and how they are used for diagnostic and therapeutic purposes. X-ray, or roentgen ray, is a type of electromagnetic wave. Travels at the speed of light (186,000 miles per second) Can penetrate solid objects. X-rays react with photographic film to produce a permanent record. The image is lightest where the film is struck by the most X-ray energy. Differences in tissue densities produce the x-ray image Least dense tissue – lightest on film Most dense tissue – darkest on film Brief History of the X-Ray (cont.) Diagnostic and therapeutic uses Radiologic technologists Radiologist Performs invasive procedures Interprets films Learning Outcome: 50.1 Explain what X-rays are and how they are used for diagnostic and therapeutic purposes. X-rays and radioactive substances have both diagnostic and therapeutic uses. Radiologic technologist: 2- to 4-year curriculum; certified to perform certain radiologic .
