ARDMS (American Registry for Diagnostic Medical Sonography) Practice Test

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare effectively for the ARDMS (American Registry for Diagnostic Medical Sonography) Test with our comprehensive study materials and tips. Master the exam format and content to pass with flying colors!

Practice this question and more.


Lateral resolution will be improved if the sonographer performs which operation?

  1. Decreases the scanning depth

  2. Increases the number of focal zones

  3. Maximizes the output power

  4. Uses a lower frequency

The correct answer is: Increases the number of focal zones

Increasing the number of focal zones will improve lateral resolution. Lateral resolution is the ability to distinguish two structures that are close together side by side. By increasing the number of focal zones, the sound beam can be focused at different depths along the scan line, leading to better lateral resolution. This allows for improved clarity and sharpness in the imaging of structures in the lateral direction. Conversely, decreasing the scanning depth (Option A), maximizing the output power (Option C), or using a lower frequency (Option D) are not directly related to improving lateral resolution.