Vascular Access, Infusion Monitoring, and Extravasation Prevention
Key Takeaways
- Vascular access choice depends on therapy properties, duration, patient veins, vesicant status, infection risk, and institutional policy.
- Before vesicant or irritant administration, nurses verify patency, assess the site, and confirm blood return when required by policy.
- Extravasation prevention depends on site selection, securement, patient reporting, frequent assessment, and avoiding high-risk peripheral sites when possible.
- Suspected extravasation requires immediate action according to the specific drug and policy; do not flush or remove the catheter until instructions are clear.
- Central line care includes infection prevention, dressing integrity, line identification, blood return assessment, and escalation of complications.
Vascular Access, Infusion Monitoring, and Extravasation Prevention
Systemic therapy often depends on safe vascular access. The right access device reduces treatment delays, tissue injury, infection, thrombosis, and patient distress. Access decisions are influenced by drug properties, vesicant or irritant status, osmolarity, pH, duration of therapy, infusion length, patient anatomy, history of difficult access, lymphedema risk, and patient preference. The RN should apply institutional policy and escalate when access is not appropriate for the planned therapy.
Peripheral and Central Access
Peripheral IV access may be appropriate for short, nonvesicant infusions when the vein is healthy and the site can be monitored. Central venous access may be preferred or required for vesicants, continuous infusions, poor peripheral veins, frequent blood draws, prolonged therapy, or certain supportive treatments. Central devices include implanted ports, tunneled catheters, nontunneled central lines, and peripherally inserted central catheters. Each device has benefits and risks, including infection, thrombosis, migration, occlusion, and maintenance burden.
| Access issue | Nursing action |
|---|---|
| No blood return when required | Stop and troubleshoot per policy before administration |
| Pain or burning | Pause infusion and assess for infiltration, extravasation, or irritation |
| Swelling or coolness | Stop infusion and evaluate site immediately |
| Redness or drainage | Assess for infection or phlebitis and notify provider |
| Resistance when flushing | Do not force; assess and follow occlusion policy |
Extravasation Prevention
Extravasation is leakage of a vesicant or tissue-damaging drug into surrounding tissue. Prevention begins before the infusion starts. Avoid fragile veins, areas of flexion, sites near tendons or nerves, edematous limbs, recently used distal sites when possible, and limbs with impaired lymphatic drainage according to policy. Secure the catheter without hiding the site. Confirm blood return and patency as required, educate the patient to report pain, burning, pressure, swelling, or wetness immediately, and assess the site frequently throughout administration.
Suspected Extravasation Response
If extravasation is suspected, stop the infusion immediately. Follow the institution's agent-specific extravasation protocol. In many protocols, the catheter is left in place initially so aspiration or antidote administration can occur if ordered; flushing can worsen tissue exposure and should be avoided unless the protocol directs otherwise. Mark and photograph the area if policy allows, measure the site, notify the provider and pharmacy, apply compresses only according to the specific drug protocol, document thoroughly, and arrange follow-up because injury may evolve over days.
Infusion Monitoring
Monitoring includes vital signs when required, symptom checks, line checks, pump verification, and comparison with baseline. For high-risk first infusions, monoclonal antibodies, taxanes, platinum agents, asparaginase products, and certain biologics, reaction readiness is essential. Emergency equipment and medications should be available according to policy. The RN should know how to pause an infusion, maintain access, call for help, and support airway and circulation while awaiting provider direction.
Central Line Complications
Central line assessment includes dressing integrity, catheter position, blood return, signs of infection, pain, swelling, and patient-reported changes. Fever with a central line requires prompt evaluation for bloodstream infection, especially during neutropenia. Arm, neck, or facial swelling can suggest thrombosis or catheter malfunction. Shortness of breath, chest pain, or catheter migration symptoms need urgent assessment. Teach patients to keep dressings dry, avoid pulling on the line, report fever or drainage, and never allow non-oncology staff to use a line in a way that conflicts with policy.
Practice Priorities
A common safety failure is assuming a quiet patient has no site symptoms. Many patients do not want to interrupt treatment, especially if they traveled far or fear delay. The RN should invite reporting in direct language: pain, burning, tightness, pressure, wetness, or a change in how the arm feels should be reported immediately. Recheck the site after position changes, bathroom trips, pump alarms, and medication changes. For central lines, visible dressing problems and subtle swelling deserve attention before the next drug is connected. Early interruption is safer than finishing through uncertain access.
- Do not administer through questionable access.
- Keep vesicant sites visible during infusion whenever possible.
- Treat patient-reported burning or pressure as meaningful.
- Use drug-specific extravasation guidance, not a generic response.
A patient receiving a vesicant through a peripheral IV reports burning and the site appears swollen. What should the nurse do first?
Which peripheral IV site is generally least desirable for vesicant administration?
What central line finding should be escalated before systemic therapy administration?