1.) In your own words, define the static magnetic field and describe the danger associated with B(o) related to the translational gradient magnetic field. Provide an example that illustrates the danger of the static magnetic field. Be specific in your answer. 2.) Discuss in detail “active” and “passive” shielding. Describe what each type of shielding is able to achieve. Describe the concerns and safety issues related to each type of shielding. 3.) What is the B(1) field in clinical MRI? List and describe 2 safety concern is related to the B(1) field in clinical MRI. 4.) You stop a nurse who is about to enter zone IV with a pair of Kelly clamps that she has forgotten to remove from her pocket. List and discuss the two forces the ferrous Kelly clamps will be exposed to in zone IV Discuss what would occur if the nurse entered the room with this ferrous item in her pocket 5.) In your own words, define the MR Time-varying Gradient System. List and describe two dangers associated with the MRI Gradient System. 6.) List 3 different types of metalmaterials that are MRI conditional and may be brought into the room – what are these objects made of? List any 3 types of metal objects that are known to be MRI unsafe – what are these objects composed of that makes them MRI unsafe? List any 3 items that may or may not be MRI unsafe? Describe the best practices for managing these types of metal in the MRI suite 7.) List and describe each of the zones of sequential screening and access control as outlined by the American College of Radiology (ACR) in the White Paper on MRI Safety In your answer please describe who and what is allowed in each zone as well as the significance of the 5 gauss line. 8.) The static magnetic field is always on, even when the scanner is not being used for imaging. True or Falese 9.) In addition to the magnetic moments becoming aligned parallel to the external static magnetic field they are also precessing, which is similar to the spinning of a gyroscope. True or false 10.) The potential for nerve stimulation from the X, Y, Z gradients is greatest at iso-center. True or False 11.) MRI safety experts recommend the use of “ferromagnetic-only” detectors designed especially for MRI use to replace the current way of screening patients and non-MRI personnel with the MRI safety-screening checklist. 12.) 1.5 Tesla MR system is nearly as strong as the earth’s magnetic field. True or false 13.) The MRI exclusion zone for materials that have a ferrous component and are MRI unsafe is the ________? 1 Gauss 5 Gauss 1.5 Gauss 3 Telsa 14.) Policies in MRI are developed based on which of the following: FDA guidlines Manufacturers testing and recommendations MRI ACR White Paper All of the above 15.) When an MRI System is designed with active shimming: metal objects are safe to enter zone IV there is no longer a fringe field the fringe field that exists is minimized none of the answers provided are correct 16.) The distance that the 5 gauss line extends from isocenter is: is located 5 feet in all directions depends only on the main magnetic field stregnth is dependent on the magnetic field strength. geometry of the magnet, and type of magnetic shielding is dependent on the magnetic field strength, type of magnetic shielding and RF power. 17. When should the scan room door to Zone IV be closed shut? When the system is not in use When the patient is being scanned When the technologist is preparing the patient in zone IV to be scanned All of the above 18.) The ACR recommends MRI safety training for: All hospital employees who have access to zone III, incluiding anesthesiologists, nurses, and environmental staff Radiology and MRI personnel only, such as technologists and front desk staff MRI technologists and radiologists only MRI technologists only 19.) The ACR recommends MRI safety training for: All hospital employees who have access to zone III, incluiding anesthesiologists, nurses, and environmental staff Radiology and MRI personnel only, such as technologists and front desk staff MRI technologists and radiologists only MRI technologists only 20.) The loud repetitious acoustic noise is: the result of the Lorentz forces that act on the applied gradients coils in the presence of the static magnetic field. activated by the RF pulses switching on and off. the noise that hydrogen makes as it is tipped into the transverse plane none of the answers provided is correct 21.) The spacial gradient magnetic field is responsible for: image slice selection increasing signal to noise translational attraction (force) all of the above 22.) Which component is likely responsible for patient burns in MRI The spacial graident The transmit RF The RF receiver None of the answers provided is correct 23.) Select any two of the True or False questions that you answered as FALSE. List the question # and then explain why you believe the statement is falsey, and provide information that would make the answer true. Be specific.

Mastering the Art of Online Learning: Your Guide to Acing Online Courses

Introduction

In recent years, the popularity of online courses has skyrocketed, offering learners the flexibility to acquire new skills and knowledge from the comfort of their homes. However, succeeding in online courses requires a different approach compared to traditional classroom settings. To help you make the most of your online learning experience, this article presents essential strategies and tips to ace your online courses.

1. Set Clear Goals and Plan Ahead

Before embarking on an online course, establish clear goals and objectives. Determine what you hope to achieve by the end of the course and break down your goals into manageable milestones. Create a study schedule that aligns with your other commitments, ensuring you allocate dedicated time for coursework, assignments, and revision.

2. Create a Productive Study Environment

Establishing a conducive study environment is crucial for online learning success. Find a quiet, well-lit space where you can concentrate without distractions. Remove any potential interruptions, such as notifications from social media or email. Organize your study materials and have a reliable internet connection to ensure seamless access to course materials.

3. Actively Engage in the Course

Active participation is key to mastering online courses. Engage with course materials, including videos, readings, and interactive components. Take comprehensive notes, highlighting key concepts and ideas. Participate in discussion boards, forums, and virtual meetings to interact with instructors and peers, fostering a sense of community and enhancing your understanding of the subject matter.

4. Manage Your Time Effectively

Online courses offer flexibility, but it’s essential to manage your time wisely to avoid falling behind. Create a detailed schedule, allocating specific time slots for coursework, assignments, and studying. Break down larger tasks into smaller, manageable segments to prevent procrastination. Prioritize tasks based on deadlines and dedicate focused time to each one, ensuring consistent progress throughout the course.

5. Develop Effective Communication Skills

Online courses often rely on written communication, making it crucial to hone your skills in this area. Be concise and clear in your written responses, paying attention to grammar and spelling. Actively participate in discussions, asking thoughtful questions and providing constructive feedback to your peers. Regularly check your course emails and notifications, ensuring you stay updated with any important announcements or changes.

6. Utilize Available Resources

Take full advantage of the resources provided by your online course platform and instructors. Familiarize yourself with the learning management system (LMS) and explore its features. Access supplementary materials, such as textbooks, lecture slides, and external resources recommended by instructors. Utilize online libraries, research databases, and tutorial services to deepen your understanding of the subject matter.

7. Stay Motivated and Engaged

Maintaining motivation throughout an online course can be challenging, particularly when faced with competing priorities or a lack of face-to-face interaction. Set short-term goals and reward yourself upon their completion. Connect with fellow learners through virtual study groups or online forums to foster a sense of camaraderie. Regularly remind yourself of the benefits and personal growth associated with completing the course successfully.

8. Seek Support and Clarification

Don’t hesitate to seek support or clarification when needed. Reach out to your instructors for guidance or clarification on course material. Utilize online discussion forums to ask questions or engage in collaborative problem-solving. Leverage the support services provided by your course platform or institution, such as technical support or academic advising.

Conclusion

Online courses present unique opportunities for self-paced learning and personal growth. By setting clear goals, creating a productive study environment, actively engaging with course materials, and managing your time effectively, you can maximize your chances of acing online courses. Remember to stay motivated, seek support when needed, and make the most of the available resources. Embrace the flexibility and adaptability of online learning to achieve your educational goals.