After immobilizing a limb, which finding would indicate compromised distal circulation requiring reassessment?

• A. Increased warmth and redness distal to the injury.
• B. Diminished distal pulse and numbness.
• C. Warm, pink skin with normal sensation.
• D. Strong distal pulse and swelling, with no numbness.

Answer: (B)

After immobilizing a limb, you must constantly check distal circulation to ensure blood flow and nerve function remain intact. The best indicator that circulation is compromised and needs reassessment is a diminished distal pulse paired with numbness. A weaker or absent pulse means arterial supply to the area is reduced, which can quickly lead to tissue damage if not addressed. Numbness adds that nerve function is affected, signaling that the injury or the immobilization is impairing neurovascular status. In contrast, increased warmth and redness suggest good or reactive blood flow; warm, pink skin with normal sensation indicates normal perfusion; and a strong distal pulse with swelling but no numbness points to preserved circulation despite swelling.