What is referred to as pulse deficit?

Pulse deficit refers specifically to the difference between the apical pulse rate and the radial pulse rate. The apical pulse is the heartbeat measured at the apex of the heart, typically found at the left fifth intercostal space, while the radial pulse is measured at the wrist.

When there is a pulse deficit, it indicates that not all heartbeats produce a palpable pulse in the peripheral circulation. This discrepancy can signal issues such as arrhythmias or inadequate cardiac output, where the heart may be beating rapidly or irregularly, causing some beats to not effectively transmit blood to the extremities, hence not detectable at the radial artery.

Understanding pulse deficit is crucial in clinical settings, particularly for monitoring cardiovascular health and diagnosing potential heart conditions. It's essential for healthcare professionals to assess both apical and radial pulses to identify any irregularities that could indicate underlying health issues.