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Radio-Radial Delay

March 28th, 2020


If present, a delay between bilateral radial pulses suggests narrowing of the aorta proximal to the left subclavian artery - classically in the context of coarctation of the aorta.
  • How to Elicit

  • Palpate bilateral radial pulses at the same time.
If the left radial pulse is slightly later than the right, then radio-radial delay is present.
  • Radio-Radial Delay
  • Causes of Radio-Radial Delay

  • Aortic coarctation
  • Subclavian stenosis
  • Takayasu arteritis
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