What feature is commonly noted about the pulse in coarctation of the aorta?

In the context of coarctation of the aorta, a significant characteristic is the presence of radial-femoral pulse lag. This phenomenon occurs due to the narrowing of the aorta typically distal to the branches that supply the upper body. As a result, individuals with coarctation often exhibit a disparity in pulse intensity and timing between the upper and lower extremities. The pulses in the arms (such as the radial pulse) may be strong and easily palpable, while those in the legs (like the femoral pulse) may be weak or delayed.

This differential pulse quality is crucial in identifying coarctation, as it indicates that blood flow to the lower extremities is compromised due to the constriction. Understanding this clinical presentation is essential for diagnosis and management of coarctation of the aorta, allowing clinicians to address potential complications associated with this condition.