Echocardiogram Programming Fundamentals 2

Question 1

What does increasing the overall gain on an echocardiography machine primarily affect?

Accepted Answer

Brightness of all returning echoes

Answer

Overall gain amplifies all returning echo signals, increasing the brightness of the entire image uniformly.

Question 2

Which parameter should be adjusted to reduce near-field artifacts caused by excessive gain near the transducer?

Accepted Answer

Time gain compensation (TGC) near-field sliders

Answer

TGC near-field sliders selectively reduce amplification of echoes returning from shallow depths, minimizing near-field clutter.

Question 3

When imaging a patient with poor acoustic windows, which machine setting can improve endocardial border definition?

Accepted Answer

Activate tissue harmonic imaging

Answer

Tissue harmonic imaging uses second-harmonic frequencies to reduce clutter and artifact, improving border definition in difficult windows.

Question 4

What is the primary effect of reducing imaging depth on a 2D echocardiogram?

Accepted Answer

Increased frame rate

Answer

Reducing depth shortens the time needed for each pulse to return, allowing more frames per second and thus higher temporal resolution.

Question 5

A sonographer notices aliasing in a pulsed-wave Doppler tracing. Which adjustment will most directly resolve this?

Accepted Answer

Increase the scale (velocity range)

Answer

Increasing the Doppler velocity scale raises the Nyquist limit, allowing higher velocities to be displayed without aliasing.

(Echocardiogram) Certified Echocardiogram Technician Practice Test