Contrast Extravasation Management (ACR 2024)

Algorithm Steps

1. ▶

   Start

   Contrast Extravasation Detected

   Contrast injected outside vein

   1. ⚠

      Warning

      Immediate Actions

      Stop and assess

      • STOP injection immediately
      • Remove IV catheter (don't flush)
      • Document estimated volume extravasated
      • Notify radiologist
      • Examine and document affected area
      1. ●

         Action

         Initial Assessment

         Evaluate severity

         • ESTIMATE VOLUME:
         • - Power injector: Calculate from injection data
         • - Hand injection: Estimate from swelling
         • EXAMINE:
         • - Location (hand/wrist highest risk)
         • - Circumferential involvement
         • - Skin color and integrity
         • - Capillary refill
         • - Pain level
         • - Motor/sensory function
         1. ◆

            Decision

            Risk Stratification

            Volume and location determine risk

            • LOW RISK: <30-50 mL, large area
            • MODERATE: 50-100 mL
            • HIGH RISK: >100 mL, hand/wrist
            1. ●

               Action

               Low Risk (<50 mL)

               Conservative management

               • TREATMENT:
               • - Elevate extremity above heart
               • - Cold compress initially (15-20 min)
               • - Then warm compress after 4-6 hours
               • - Reassurance
               • DISCHARGE INSTRUCTIONS:
               • - Keep elevated
               • - Return if: Increasing pain, numbness, blisters
               • - Most resolve in 24-48 hours
               1. ●

                  Action

                  Documentation

                  Important for follow-up and QI

                  • DOCUMENT:
                  • - IV site and gauge
                  • - Contrast type and concentration
                  • - Injection rate
                  • - Estimated volume extravasated
                  • - Clinical findings
                  • - Treatment provided
                  • - Follow-up plan
                  • - Incident report per policy
                  1. ✓

                     Outcome

                     Outcomes

                     Prognosis

                     • Most extravasations: No sequelae
                     • Large volume: May have prolonged swelling
                     • Compartment syndrome: Rare (~0.04%)
                     • Skin necrosis: Rare with modern agents
                     • Prevention: Good IV technique, antecubital preferred
            2. ●

               Action

               Moderate Risk (50-100 mL)

               Close monitoring required

               • TREATMENT:
               • - Elevate extremity
               • - Cold compress initially
               • - Serial examinations (q2-4h)
               • - Document progression
               • - Analgesia PRN
               • ESCALATION CRITERIA:
               • - Progressive swelling
               • - Skin changes (blistering)
               • - Neurovascular compromise
               • - Consider plastic surgery consult
               1. ◆

                  Decision

                  Signs of Compartment Syndrome?

                  Surgical emergency

                  • Pain out of proportion
                  • Pain with passive stretch
                  • Tense swelling
                  • Paresthesias
                  • Weakness
                  1. ⚠

                     Warning

                     Compartment Syndrome

                     URGENT SURGICAL CONSULT

                     • IMMEDIATE:
                     • - Plastic/hand surgery STAT
                     • - Elevate but NOT above heart level
                     • - Remove constrictive items
                     • - Measure compartment pressures
                     • TREATMENT:
                     • - Fasciotomy if confirmed
                     • - Time-critical (6-8 hour window)
                     • RARE but serious complication
                  2. ●

                     Action

                     Skin Necrosis/Ulceration

                     Delayed complication

                     • RISK FACTORS:
                     • - Large volume
                     • - Hand/wrist location
                     • - Ionic contrast (older agents)
                     • - Poor peripheral circulation
                     • MANAGEMENT:
                     • - Wound care
                     • - Plastic surgery referral
                     • - May need debridement/grafting
                     • TIMELINE: Days to weeks after injury
            3. ⚠

               Warning

               High Risk (>100 mL)

               Potential for serious injury

               • IMMEDIATE ACTIONS:
               • - Elevate above heart
               • - Baseline neurovascular exam
               • - Mark boundaries with skin marker
               • - Serial exams q1-2h
               • CONSULTS:
               • - Plastic surgery (early)
               • - Consider admission
               • WATCH FOR:
               • - Compartment syndrome
               • - Skin necrosis
               • - Ulceration