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Radio-Radial Delay



  • 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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