Understanding Ultrasound Physics and Instrumentation TEST STUDY GUIDE 2025/2026 ACCURATE QUESTIONS AND VERIFIED CORRECT SOLUTIONS WITH RATIONALES || 100% GUARANTEED PASS <RECENT VERSION>

Understanding Ultrasound Physics and Instrumentation TEST STUDY GUIDE 2025/2026 ACCURATE QUESTIONS AND VERIFIED CORRECT SOLUTIONS WITH RATIONALES || 100% GUARANTEED PASS &lt;RECENT VERSION&gt; 1. Image Brightness - ANSWER Visual intensity of the ultrasound image. 2. Reflectors - ANSWER Structures that reflect sound waves back to transducer. 3. Depth Gain Compensation (DGC) - ANSWER Synonym for compensation addressing depth-related signal loss. 4. Automated Compensation - ANSWER Feature that adjusts compensation settings automatically. 5. Parameters - ANSWER Describe features of sound wave. 6. Period - ANSWER The time it takes a wave to vibrate a single cycle; or the start of 1 cycle to the next. 7. Period is reported in units of time ____________ - ANSWER microseconds 8. The typical value of a period in diagnostic ultrasound is ____ __ ____ ____________. - ANSWER 0.06 to 0.5 microseconds 9. Period is determined only by the _____ ______. - ANSWER Sound source 10. The sonographer cannot change/adjust the the period. - ANSWER True 11. Frequency is the number of particular events that occur in a ________ ________ __ ____. - ANSWER specific duration of time 12. Frequency is reported in units per second or __. - ANSWER Hz 13. 1 cycle/second= - ANSWER 1 hertz 14. Typical values range from approximately __ ___ to __ ___. - ANSWER 2 MHz to 15 MHz 15. 'frequency of sound is only determined by the _____ ______. - ANSWER sound source 16. The sonographer cannot change/adjust the frequency. - ANSWER True 17. Infrasound is less than __ __. - ANSWER 20 Hz 18. Audible sound is between __ __ and __ ___. - ANSWER 20 Hz and 20 kHz 19. Ultrasound is greater than __ ___. - ANSWER 20 kHz 20. Period and frequency are _______ related. - ANSWER inversely 21. As frequency increases, period _________. - ANSWER decreases 22. The logarithm of a numeral is define as how many times_____ must be multiplied together to get that numeral. A. 1 B. 2 C. 5 D. 10 - ANSWER The logarithm of a numeral is equal to the number of Tens that are 23. Is cholesterol level and longevity a. inversely related b. directly related c. unrelated - ANSWER a. inversely related. cholesterol increases, lifespan decreases. 24. Is smoking and the likelihood of cardiovascular disease a. inversely related b. directly related c. unrelated - ANSWER b. directly related 25. Are years employed and days of vacation earned per year a. inversely related b. directly related c. unrelated - ANSWER b. directly related 26. Is IQ and shoe size a. inversely related b. directly related c. unrelated - ANSWER c. unrelated 27. Is caloric intake and weight a. inversely related b. directly related c. unrelated - ANSWER b. directly related. weight increase when calories increase 28. Is hours spent exercising and weight a. inversely related b. directly related c. unrelated - ANSWER a. inversely related. exercise increases, weight decreases 29. Is alcohol intake and sobriety a. inversely related b. directly related c. unrelated - ANSWER a. inversely related 30. How are the size of a tree and its age related? a. inversely related b. directly related c. unrelated - ANSWER b. directly related 31. How are the height of a person and the color of his automobile related? a. inversely related b. directly related c. unrelated - ANSWER c. unrelated 32. How is the age of a loaf of bread related to its freshness? a. inversely related b. directly related c. unrelated - ANSWER a. inversely related. age increases, freshness decreases 33. List these metric terms in INCREASING order: A. mega B. micro C. milli D. hecto E. deca F. deci - ANSWER B. micro, C. milli, F. deci, E. deca, D. hecto, A. mega 34. how many milliliters are in 8 liters. A. 1/8 B. 8 c. 800 d. 8000 - ANSWER d. 8000. milli means thousandth, so multiply 1000 by 8. 35. how many centimeters are in 3 meters? a. 1/300 b. 1/3 c. 3 d. 300 - ANSWER d. 300. centi means hundredth, so multiply 3 by 100