Doppler study - Study guides, Class notes & Summaries

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 diagnostic scan in a timely fashion at the lowest output power that achieves a quality image. D: Maximize the acoustic output to brighten the overall image. E: ...

Which of the following is not a potential cause of artifact and diagnostic imaging? A. Operator error B. equipment malfunction C. Patient motion D. Ultrasound physics E. none of the above - ️️E. none of the above The four choices, A through D, represent the primary explanations of artifacts commonly seen in diagnostic ultrasound. What is the meaning of the term "analysis" in the context of spectral analysis of Doppler signals? A. Building a sophisticated signal from component...

Which view do you start with in cardiac imaging? Ans- 2D Which imaging modes are used? Ans- 2D, m-mode, color Doppler, Doppler What does Doppler allow us to analyze? Ans- flow What does color Doppler allow us to analyze? Ans- visually analyze flow Which view is M-mode used in? Ans- parasternal When can M-mode be used in other views? Ans- if it's a technically limited study What does M-mode do? Ans- looks at motion and allows for measurement of structures and calculations of cardi...

According to the Bernoulli Principle, where will you find the lowest pressure in a vessel with stenosis? A. proximal to the stenosis B. distal to the stenosis C. in the collateral vessels D. at the site of stenosis D. at the site of stenosis Which of the following is a system adjustment that is made when changing from a lower extremity arterial exam to a lower extremity venous exam on the same patient? A. reverse the color display baseline B. decrease transducer frequency C. de...

While using a linear sequential array transducer during a color Doppler exam, the shape of the grayscale image is most often _______, Whereas the shape of the color Doppler portion of the image is _______. A. rectangular, parallelogram B. rectangular, sector C. sector, trapezoid D. square, rectangular A. rectangular, parallelogram The shape of a grayscale image using a linear sequential array is rectangular. However, the sound beams used for Doppler are steered at an angle, cre...

___ is defined as specific area or location where Doppler shift info is being obtained. A. spectral broadening B. nyquist limit C. sample volume D. spectral window C. sample volume Spatial resolution is: A. the minimum reflector separation required to produce separate echos. B. highest with linear phased arrays. C. the weakest reflected signal the transducer can receive D. another term for slice thickness resolution A. the minumum reflector separation required to produce echos Wh...

This converter converts the numbers stored in memory to proportional voltages that control the brightness on a CRT monitor Digital to Analog Converter The Digital Scan Converter is AKA: Image Memory This is where images are stored in the ultrasound system: Scan Converter The system component which is most responsible for transmit focusing: Beam Former The process of filling in the empty spaces between scan lines: Interpolation Red, Green & Blue- The three colors used for color m...

Which setting should be lowered to the minimum level when beginning to evaluate the patient using the orbital window? a.) Output power b.) Doppler gain c.) Wall filter d.) Velocity scale - a.) Output power If the Doppler cursor angle is underestimated, the velocity of the flow will be _____________________ a.) Overestimated b.) Underestimated c.) Be unaffected d.) Dependent solely on the strength of the frequency shift - b.) Underestimated What is the Framingham risk score? - A gender...

CCI Echo Review Questions and Answers Already Passed Which abnormalities commonly go with Marfan's? Mitral Valve prolapse and Aortic dilation Papillary muscle dysfunction usually results from Ischemic Heart Disease In order to record the veg of endocarditis by echo, it must be 3 mm How many veins connect the pulmonary vascular bed with the LA? 4 Which cardiomyopathy is associated with amyloidosis? infiltrative Which m-mode finding is considered to be a specific indicator of ...

NUR 242 Med Surg exam 4 Study Guide Med Surg Exam 4 Unit 9: Caring for the patient common perfusion problems CARDIOVASCULAR ASSESSMENT: ► Perform a complete cardiovascular assessment. As HTN is a risk factor for CAD, assess BP in both arms. Check for all major pulses as well as capillary refill and temperature of lower extremities. Prolonged capillary filling (>3 seconds in young to middle-aged adults; >5 seconds in older adults) indicates poor circulation. ► Listen with a stethos...