Question

If a sonographer measures the peak systolic velocity (PSV) from the ICA and the spectral window appears filled in with blood moving in various directions, what does this indicate?

a. Spectral broadening
b. Patent ICA
c. The gain is set too high.
d. Laminar flow

Answer 1

If the spectral window appears filled in with blood moving in various directions, it indicates spectral broadening, which suggests the presence of stenosis or other pathology. This disrupts the normal laminar flow of blood.

Step-by-step explanation:

If a sonographer measures the peak systolic velocity (PSV) from the ICA and the spectral window appears filled in with blood moving in various directions, this indicates spectral broadening. Spectral broadening occurs when there is turbulence or disturbed flow within the blood vessel. It indicates the presence of stenosis or other pathology that disrupts the normal laminar flow of blood.