Infiltrated Ivy
Infiltration vs Extravasation vs Phlebitis: Cool and Swollen or Red and Warm
Written lecture — video coming
The memory hook
Her IV arm is puffy, pale and cool to the touch — the fluid is going into the tissue, not the vein
The story
Ivy's forearm is swollen and cool around her IV. The pump keeps alarming, and there is no blood return.
Ivy is a devoted florist known throughout her hospital's outpatient infusion center for arranging fresh bouquets on the nurses' station every week, earning her nickname both from her trade and from the fragile, tender way she has always cared for delicate things. Admitted for a scheduled course of intravenous antibiotics after a severe cellulitis infection, Ivy has notoriously difficult veins from decades of gardening-related nicks and scars, making IV access a genuine challenge for every nurse who cares for her. Understanding her case requires understanding three distinct vascular complications that look deceptively similar at first glance: infiltration, where non-vesicant fluid leaks into surrounding tissue causing cool, pale swelling; extravasation, the same leak but with a tissue-damaging vesicant drug; and phlebitis, inflammation of the vein wall itself producing warmth, redness, and tenderness along the vein's path.
On her second hospital day, Ivy's peripheral IV in her right forearm was placed after four difficult attempts, and the nursing staff is relieved to finally have reliable access for her scheduled antibiotic infusions. The site initially looks perfectly appropriate, with no redness, swelling, or discomfort noted on the morning assessment. Ivy herself is a quiet, uncomplaining client who rarely reports symptoms unless directly asked, a personality trait her nurse has already noted and adjusted for by performing more frequent, proactive site checks rather than waiting for Ivy to volunteer a complaint on her own.
By the afternoon infusion, Ivy mentions almost casually that her arm feels a little tight, and her nurse immediately examines the site closely. The skin surrounding the IV catheter is now visibly swollen, pale, and distinctly cool to the touch compared to the surrounding skin, with the infusion rate noticeably slowed despite the pump alarming intermittently for occlusion. There is no redness and no palpable cord along the vein, ruling out phlebitis, but the fluid clearly is no longer reliably entering Ivy's vein. Because her antibiotic is a non-vesicant medication, this presentation points specifically to infiltration rather than the more tissue-destructive extravasation, though the nurse knows the response must still be immediate and thorough.
The nurse stops the infusion immediately, disconnects the tubing from the catheter, and removes the IV entirely rather than attempting to flush it to test patency, since flushing an infiltrated line only pushes more fluid into the tissue. She elevates Ivy's affected arm to encourage reabsorption of the infiltrated fluid and applies a warm compress, consistent with protocol for this particular non-vesicant medication, while documenting the site's appearance, the estimated volume infiltrated, and Ivy's reported sensations in detail. She restarts a new IV in Ivy's opposite arm to continue the antibiotic course without interruption and educates Ivy clearly to report any burning, stinging, swelling, or coolness immediately in the future rather than waiting until it feels notably uncomfortable.
The setup
Ivy has an IV in her forearm for fluids and antibiotics. Late in the shift the pump starts alarming.
The turn
Her forearm around the site is puffy, pale and cool. The skin feels tight.
The crisis
The nurse checks the medication list — if the leaked drug had been a vesicant, this would be extravasation with a risk of tissue death.
The save
The infusion is stopped, the site is assessed and documented, the arm is elevated, and a new IV is started in the opposite arm.
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