Ultrasound Basics Step 12 Final Self Learning Tests (1 hour) Must obtain 80% and Answer following questionnaire to complete the module Basic Physics - Self Test In relationship to ultrasound imaging, air will:Improve ultrasound transmissionBy being a strong reflector, air will be impermeable to transmissionHave no effect on ultrasound transmissionCan not be used in lung ultrasound due to the air content in lungsThe number of cycles per second is the definition ofWave speedFrequencyHertzNone of the aboveDiagnostic ultrasound transducers are basedon the physical principle of:Murphy’s lawALARA principleDoppler principlePiezoelectric effectNone of the aboveAxial resolution of ultrasound is primarily dependent on the:Transducer frequencyPowerFrame rateBeam widthCompared with a 2-MHz transducer, a 5-MHztransducer will have:A deeper tissue penetrationA lower image resolutionNo difference in depth penetration or image resolutionBoth a better resolution image and a greater depth penetrationA better image resolution and a lower depth penetration
