The end results of a lens or transducer crystal issue can include which of the following?

• A. Degradation of image quality
• B. Underestimation of maximum flow velocity
• C. Electrical shock
• D. Both A and B

Answer: (D)

When a lens or transducer crystal is damaged, the ultrasound beam isn’t delivered or received as cleanly, so the image you get becomes blurred and less reliable. The focusing and sensitivity of the beam drive image quality, so any misfocus or loss of signal shows up as poorer resolution and more artifacts.

For Doppler-based velocity measurements, a stable, well-focused beam is also essential. If the crystal elements or lens are compromised, the Doppler signal can be weakened or misrepresented, causing the calculated maximum flow velocity to be lower than its true value.

Electrical shock isn’t a typical result of lens or crystal issues; that would point to other electrical insulation or wiring faults. So the end results most likely involve degraded image quality and underestimation of maximum flow velocity, together making the option that includes both your best choice.