The pw signal that is - Study guides, Class notes & Summaries

The direction of the Doppler shift determines: A. the peak velocity of the flow B. the color Doppler hue C. the average velocity of the flow D. the color Doppler luminance -answer- B. the color Doppler hue Color Hue - perceived color used to demonstrate direction (red and blue or positive and negative shift) What is the primary factor that determines the resistance characteristics of the arterial signal displayed by PW Doppler? A. vessel course and location B. branch number C. part it...

URR Mock Exams Questions with Correct Answers Which of the following is true regarding CW transducer structure and function? - Answer-CW probes usually have no backing material except a pocket of air posterior to the element You are performing a PW doppler exam. only two cardiac cycles are demonstrated on the screen at one time. What adjustment can be made to demonstrate 5-6 cardiac cycles on the screen at one time? - Answer-decrease the sweep speed What is the primary factor that determ...

Physics Doppler Effect Exam Questions and Answers 100% Solved What is the doppler effect? - answera change in frequency caused by the motion of a sound source In a positive doppler shift the received frequency is [lower, higher] than the transmitted frequency - answerhigher In a negative doppler shift the received frequency is [lower, higher] than the transmitted frequency - answerlower the amount of increase or decrease in doppler frequency depends on what 3 things? - answer1. speed 2...

CCI Practice Test #1 questions with correct answers The majority of aortic aneurysms form in what part of the vessel? Answer infrarenal Which of the following can lead to a false negative diagnosis of ICA stenosis? Answer congestive heart failure The 12cm blood pressure cuffs are missing from the lab. You perform the 3 cuff method lower extremity segmental pressure exam with the 10cm cuffs on a patient that is 5'5 150 lbs. What information that you will report will be invalid? Answer thi...

ARDMS Echo RDCS Board Registry practice Test 200 Questions with Verified Answers Which is the following is the typical treatment for advanced pericarditis? a. thoracentesis b. stent placement c. heart transplant d. pericardectomy - CORRECT ANSWER d When recording flow velocity on the LVOT, the: a. PW Doppler cursor should be placed distal to the aortic valve closure b. CW doppler should be placed parallel to the aortic valve closure c. CW doppler should be placed perpendicular to ...

Which of the following is true regarding CW transducer structure and function?correct answers CW probes usually have no backing material except a pocket of air posterior to the element You are performing a PW doppler exam. only two cardiac cycles are demonstrated on the screen at one time. What adjustment can be made to demonstrate 5-6 cardiac cycles on the screen at one time?correct answers decrease the sweep speed What is the primary factor that determines the resistance characteristics ...

ARDMS Exam 69 Questions with Verified Answers Tendonitis of the thumb - CORRECT ANSWER de Quervain's disease - Gripping of transducer What is trigger finger? - CORRECT ANSWER inflammation of tendon sheath in the finger due to repeated gripping of the transducer What does the FDA do for ultrasound? - CORRECT ANSWER Regulates instruments according to application, output intensities, and TI/MI What does the AIUM recommend for ultrasound? - CORRECT ANSWER Prudent use of US in clinica...

ARDMS Review Sonography basics 62 Questions with Verified Answers _________ is the branch of physics thst deals with sound & sound waves - CORRECT ANSWER Acoustics Ultasound frequency is > than? - CORRECT ANSWER > 20kHz Diagnostic ultrasound is: 1-20MHz ________ is defined as an imaging technique used to visualize soft tissue of the body by recording the returning reflection of waves - CORRECT ANSWER Sonography AIUM stands for? - CORRECT ANSWER American Institute of Ultrasoun...

Which of the following is preferred to document motion of the disk in a St. Jude Valve? A) M-Mode B) PW Doppler C) Color doppler D) CW doppler M-Mode-used to document the motion of the ball/disk in a mechanical valve. Doppler is used to assess flow through the valve.;All velocity and time interval measurements should be performed at a sweep speed of ____________ or greater. 100 mm/s;How would an optimal apical view look? 1. LV cavity is an ellipsoid shape 2. Image should consist of about 2/3 LV ...

ARDMS SPI Practice Exam B Questions and Answers Already Passed Which artifact is illustrated by this image? a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor What is the most appropriate action for the sonographer to take when receiving a verbal order for an exam? a) Deny performance of the exam until a written request is received b) Seek approval from supervisor c) Verbally re...