Davies spi - Samenvattingen en Aantekeningen

DAVIES SPI REVIEW / COMPLETE TEST BANK EXAM STUDY GUIDE – EXPERT VERIFIED ACTUAL QUESTIONS & ANSWERS FOR GUARANTEED PASS | NEWEST UPDATE, Terms in this set (1704) What action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A: Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B: Prolong the sonogram to make videos of the fetus for each family member. C: Complete the d...

DAVIES SPI REVIEW QUESTIONS & ANSWERS

What phenomenon is associated with a pattern produced by a sound beam after passing through a small aperture? Diffraction Scattering intensity is proportional to : F raised to the fourth power what term refers to regions of decreased particle density in a sound beam? rarefaction -______ is a large smooth interface such as diaphragm and pericardium Specular reflector Interference patterns of reflected waves cause _____ acoustic speckle 10-3 = 1/1000 -reduction of int...

When practicing universal precautions, you should do all of the following EXECEPT: A. Wear gloves when there is a potential for contact with patient bodily fluids. B. Change gloves when moving from one patient to another. C. Wash hands immediately after gloves are removed. D. Wear face masks or eye protection whenever there is a possibility of blood splashing into your face. E. Wash gloves between exams for re-use from one patient to another. E. Wash gloves between exams for re-use from...

What is the optimal thickness for the matching layer? 1/4 of a wavelength For a linear array transducer consisting of a single row of elements, what method is most used to focus the beam in the elevational direction? mechanical focusing acoustic impedence increases with which of the following? increased tissue density and propagation speed When scanning with pulsed-wave Doppler you would affect the acoustic exposure by changing which of the following? PRF the maximum cyclical...

What does HIPAA stand for? The Health Insurance Portability and Accountability Act What does mechanical index indicate on an ultrasound system? A: The maximum temperature increase in tissue B: The minimum temperature increase in tissue C: Acoustic power in milliwatts D: The liklihood of cavitation during an ultrasound exam E: Minutes of exposure time before tissue heating is too great D: The liklihood of cavitation during an ultrasound exam. In medicine what do the initials ...

DAVIES SPI REVIEW QUESTIONS AND ANSWERS 2024

What tissue/sound interaction is primarily responsible for imaging internal structures of organs? scattering What tissue/sound interaction is necessary for an ultrasound image? reflection For soft tissues, what is needed for determining what a specific impedance is? bulk modulus and interface You are imaging a structure that is highly attenuating. What imaging artifact would you expect to encounter? shadowing Does sound travel slower through air or through soft tissue? air ...

Davies SPI REVIEW ACTUAL EXAM TEST BANK QUESTIONS AND CORRECT DETAILED ANSWERS | ALREADY GRADED A+ | UPDATED

Which phenomenon is associated w/ a pattern produced by a sound beam after passing through a small aperture? A) Scattering B) Absorption C) Diffraction D) Interference E) Diffuse reflection C) Diffraction What system control should you adjust to compensate for sound attenuation w/ increasing depth? A) Dynamic range B) TGC C) Transmit power D) Overall receiver gain E) Focus position B) TGC You are imaging a structure containing two media having the same impedance. What wil...