Chemotherapy Foundations and Infusion Safety

Chemotherapy Foundations and Infusion Safety

Chemotherapy uses cytotoxic drugs to interrupt cancer cell growth, DNA replication, mitosis, or repair. Because these drugs also affect normal rapidly dividing tissues, the RN must think in two directions at once: antitumor intent and predictable harm. The nurse does not independently select regimens or calculate final treatment dosing, but does verify that the ordered plan is complete, current, and clinically reasonable under policy before administration.

Core Safety Checks

Before giving chemotherapy, confirm patient identity with two identifiers, consent status, diagnosis, regimen name, drug sequence, route, expected day of cycle, and planned supportive medications. Compare the order with the protocol or treatment plan and clarify discrepancies before the drug reaches the patient. Review recent weight or body surface area documentation according to policy, but avoid recalculating or changing prescribed doses outside institutional procedure.

Common Chemotherapy Toxicities

Myelosuppression increases risk for infection, bleeding, fatigue, and treatment delays. The RN reinforces fever precautions, bleeding precautions, and when to call urgently. Gastrointestinal toxicity includes nausea, vomiting, diarrhea, constipation, anorexia, taste change, mucositis, and dehydration. Neurologic effects may include peripheral neuropathy, ototoxicity, fatigue, or cognitive changes. Some agents carry organ-specific risks such as nephrotoxicity, hepatotoxicity, pulmonary toxicity, or cardiotoxicity; nurses monitor trends and symptoms and escalate early.

Infusion Safety Principles

Chemotherapy administration follows hazardous drug handling standards and local policy. Use appropriate personal protective equipment, closed-system transfer devices when required, designated disposal, and spill procedures. For IV administration, verify line compatibility, infusion rate as ordered, blood return requirements, and whether the agent is irritant, vesicant, or nonvesicant. The RN should stay alert during the first exposure, first minutes of infusion, and any rechallenge because reactions often occur early.

Infusion Reaction Response

An infusion reaction can present as flushing, itching, rash, chest tightness, dyspnea, wheezing, hypotension, hypertension, back pain, rigors, fever, anxiety, abdominal cramping, or a feeling of doom. When a concerning reaction occurs, stop the infusion, keep IV access with appropriate non-drug fluid per policy, assess airway, breathing, circulation, vital signs, and mental status, and notify the provider or rapid response team as indicated. Administer emergency medications only under standing orders or provider direction.

Document timing, symptoms, interventions, response, drug lot details if required, and whether the patient was transferred or rechallenged.

RN Scope and Escalation

The RN should not override missing consent, administer without required verification, ignore abnormal labs, or independently resume a drug after a significant reaction. Escalation is appropriate for fever, suspected sepsis, active bleeding, severe dehydration, new neurologic deficit, chest pain, severe dyspnea, uncontrolled vomiting or diarrhea, confusion, allergic symptoms, extravasation concern, or any rapid deterioration. High reliability comes from standard work: pause, verify, assess, communicate, and document.

Practice Priorities

Many chemotherapy errors are caught during routine pauses rather than dramatic emergencies. The safest nurses treat every cycle as a new administration event, especially when schedules change after hospitalization, delayed counts, renal changes, or dose modifications made by the oncology team. Compare the patient's story with the written plan: new antibiotics, missed premedications, recent falls, worsening neuropathy, or an unreported fever can change readiness for treatment.

When something does not match, the correct action is to stop the process and clarify. This protects the patient, the nurse, and the integrity of the regimen. The same approach applies after the infusion: verify that discharge instructions match today's drugs, that supportive prescriptions are available, and that the patient can repeat the urgent call criteria before leaving.

• Use teach-back before the patient leaves.
• Confirm the patient knows whom to call after hours.
• Report near misses through the safety system.
• Protect staff and caregivers from hazardous exposure.