Burning During a Doxorubicin Push: Extravasation Judgment on a Compromised Arm
Mr. R is a 58-year-old man receiving his third cycle of doxorubicin through a 22-gauge catheter in his left forearm. His right arm cannot be used because of a prior axillary lymph node dissection. Ten minutes into a slow IV push, he says the area 'burns.' You see a 2 cm patch of faint swelling and blanching at the site, with no redness. When you gently aspirate, you still get a blood return. Normal saline is infusing at 20 mL/hr alongside the push, and roughly 40% of the doxorubicin dose remains. He is anxious and asks whether he can 'just finish the dose' because he does not want to fall behind schedule.
1. List your actions in the first 5-10 minutes, in priority order, with the rationale for each. Include what you will NOT do.
Read the worked answer
Stop the doxorubicin push immediately. Do not flush the catheter and do not use it for anything else. Extravasation is a clinical diagnosis; a blood return does not exclude it, because the tip may be partially dislodged or drug may be tracking along the vessel wall back to a patent lumen.
Next, in order:
- Attempt gentle aspiration of residual drug through the existing catheter per policy, then remove the catheter without pressing or milking the site.
- Do not flush, do not massage, do not apply pressure - each can force more drug into tissue.
- Notify the prescriber and pharmacy immediately, because dexrazoxane is time-sensitive for anthracycline extravasation (ideally within 6 hours, and most benefit in the first few hours).
- Cold compress for 15-20 minutes four times daily for 24-48 hours, and elevate the limb.
- Mark the perimeter of the affected area with a skin marker, measure, and photograph per policy so progression can be tracked objectively.
- Estimate the volume extravasated from the remaining dose and infusion record, and document the drug, concentration, catheter gauge and site.
- Complete an incident report and give the patient structured follow-up education.
The single biggest error in this scenario is treating the blood return as reassurance and continuing the dose.
2. A colleague suggests a warm compress 'to help it absorb.' Explain why you disagree, and describe a case in which warmth would be the correct choice.
Read the worked answer
Anthracyclines bind to DNA and are taken up by cells; warmth causes vasodilation and would increase local blood flow and drug distribution into surrounding tissue, potentially enlarging the injury. Cold produces vasoconstriction, limits spread, and reduces cellular uptake and pain. The correct choice here is cold.
Warmth is correct for vasoconstricting / vasospastic agents, classically the vinca alkaloids (vincristine, vinblastine, vinorelbine) and sympathomimetic extravasations such as norepinephrine or epinephrine. These drugs cause ischemia by constricting vessels, so local warming promotes vasodilation, improves perfusion, and helps redistribute the agent, reducing the risk of tissue necrosis.
A quick rule to reason from rather than memorize: ask what the drug does to the vessel. If the injury is from drug binding and cytotoxicity (anthracyclines, alkylators), keep the drug local and cool the tissue. If the injury is from vasoconstriction and ischemia, warm it and restore flow. If you are unsure of the agent, do not improvise - consult pharmacy and the extravasation protocol before applying anything.
3. The patient asks again to finish the dose, and later that evening the area is 4 x 3 cm, red, and firm. What do you tell him, and what ongoing plan and education do you set?
Read the worked answer
Tell him the remaining drug will not be given through that site. The priority is preventing tissue necrosis; the oncologist will decide whether the dose is omitted or rescheduled, and that decision does not depend on finishing the syringe now. Acknowledging his schedule concern matters, but it does not change the answer.
Interpret the 4 x 3 cm area: progression within hours is expected and does not mean the initial response failed. Anthracycline injury can worsen over days, with blistering, desquamation, and ulceration appearing 3-14 days later and sometimes needing surgical debridement weeks afterward. Escalate to the oncologist and pharmacy again, confirm dexrazoxane has been considered, and request a wound/surgical or plastic surgery consult if blistering or ulceration develops.
Ongoing plan and teaching:
- Continue cold compresses for 24-48 hours as prescribed, then follow the protocol; never apply heat or massage.
- No blood pressures, venipunctures, or IVs in that arm; also protect the right arm (prior lymph node dissection), so plan central access for future cycles.
- Report increasing pain, blistering, darkening or peeling skin, drainage, or fever immediately.
- Re-measure and photograph at 24 hours, 48 hours, and 1 week; keep follow-up appointments even if it looks better.
- Document symptom onset time, drug and concentration, estimated volume, interventions, notifications, and the patient's own words.