Which statement is correct?

Question

Quizplus · Accepted Answer

The Doppler spectral waveform in the suprarenal aorta normally demonstrates constant forward flow throughout the cardiac cycle to supply the low resistance vascular beds of the liver, spleen, and kidneys. The flow pattern in the SMA in the fasting state shows low diastolic flow, because this artery supplies the high resistance vascular bed of the stomach, small intestine, and colon. After ingestion of a meal, the metabolic demands of these tissues change; the level of vascular resistance must decrease for the tissues to receive increased oxygenated blood to remove the metabolic byproducts associated with digestion. For this reason, the Doppler spectral wave from the postprandial SMA shows high diastolic flow, characteristic of a low resistance vessel.

Which Statement Is Correct