Cold, Blue Toes in a Casted Leg: What to Do First

Musculoskeletal & Perfusion · Question from the ATI RN Medical-Surgical 2023 Proctored Exam study set

Correct answer: C. Notify the healthcare provider

Why this is the answer

Cold, blue toes signal neurovascular compromise — likely compartment syndrome — which is a surgical emergency requiring prompt provider notification so the cast can be loosened or removed before permanent damage occurs. Applying a blanket (A) treats a comfort issue, not a vascular emergency, and delays the real intervention. Elevating the leg (B) can actually further reduce arterial blood flow to an already-compromised limb and wastes critical time. Giving pain medication (D) only masks the symptom without addressing the underlying vascular compromise, and delays the urgent evaluation the limb needs.

The bigger concept

This question tests the same underlying compartment-syndrome/neurovascular-compromise concept as the "earliest sign of compartment syndrome" question, just at a later stage — once cyanosis and coldness appear, the nurse must escalate immediately rather than trying comfort measures first.

Related Musculoskeletal & Perfusion practice questions

• Confusion and Petechiae After a Femur Fracture
• What Homans' Sign Used to Screen For
• The Classic Leg Position With a Hip Fracture
• Why Nurses No Longer Perform Homans' Sign
• What Phalen's Test Diagnoses

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