multi class comparison

Chemotherapy Toxicity by Organ: Cardiotoxic vs Nephrotoxic/Ototoxic vs Neurotoxic vs Myelosuppressive

When a patient on chemo develops new symptoms, the drug-to-organ map tells you whether to order an echocardiogram, check creatinine, test reflexes, or hold the next dose for low counts. Picking the wrong monitoring priority on NCLEX means missing the life-threatening toxicity the question is testing.

Comparison

Side-by-side4 compared
Comparevs
Dimension
Cardiotoxic
Nephrotoxic/Ototoxic
Neurotoxic
Myelosuppressive
Representative agents
  • Doxorubicin (anthracyclines), trastuzumab
  • Cisplatin
  • Vincristine, paclitaxel, oxaliplatin
  • Most agents (alkylators, antimetabolites)
Toxicity / target
  • ★Cumulative dose-dependent cardiomyopathy
  • Renal tubular damage + ototoxicity
  • Peripheral neuropathy (axonal)
  • Bone marrow suppression → ↓ all cell lines
Early warning signs
  • ↓ ejection fraction, dyspnea, edema
  • ↑ creatinine; tinnitus, hearing loss
  • ★Numbness/tingling hands & feet, ↓ reflexes
  • Fever, fatigue, bruising, bleeding
Monitoring
  • Baseline & serial echo/MUGA (EF)
  • Renal function, audiometry, hydration
  • Serial neuro exam, gait, fine motor
  • CBC with differential; ANC
Timing
  • Cumulative — limit lifetime dose
  • Within days — hydrate before & after
  • Dose-dependent, often cumulative
  • ★Nadir 7–14 days after dose
Nursing priority
  • Monitor EF; hold if cardiac decline
  • Aggressive IV hydration; report hearing changes
  • Fall/safety precautions; report numbness
  • ★Neutropenic precautions; infection = emergency
Antidote / rescue
  • Dexrazoxane (cardioprotectant)
  • Amifostine; mannitol + hydration
  • Dose reduction; no specific antidote
  • Filgrastim (G-CSF); transfuse as needed
Patient teaching
  • Report dyspnea, swelling, weight gain
  • Report ↓ urine, ringing, hearing loss
  • Protect numb limbs; report falls
  • Avoid crowds; report fever ≥ 100.4°F (38°C)
Representative agents

Cardiotoxic

  • Doxorubicin (anthracyclines), trastuzumab

Nephrotoxic/Ototoxic

  • Cisplatin
Toxicity / target

Cardiotoxic

  • ★Cumulative dose-dependent cardiomyopathy

Nephrotoxic/Ototoxic

  • Renal tubular damage + ototoxicity
Early warning signs

Cardiotoxic

  • ↓ ejection fraction, dyspnea, edema

Nephrotoxic/Ototoxic

  • ↑ creatinine; tinnitus, hearing loss
Monitoring

Cardiotoxic

  • Baseline & serial echo/MUGA (EF)

Nephrotoxic/Ototoxic

  • Renal function, audiometry, hydration
Timing

Cardiotoxic

  • Cumulative — limit lifetime dose

Nephrotoxic/Ototoxic

  • Within days — hydrate before & after
Nursing priority

Cardiotoxic

  • Monitor EF; hold if cardiac decline

Nephrotoxic/Ototoxic

  • Aggressive IV hydration; report hearing changes
Antidote / rescue

Cardiotoxic

  • Dexrazoxane (cardioprotectant)

Nephrotoxic/Ototoxic

  • Amifostine; mannitol + hydration
Patient teaching

Cardiotoxic

  • Report dyspnea, swelling, weight gain

Nephrotoxic/Ototoxic

  • Report ↓ urine, ringing, hearing loss

★ marks the fact that sets a column apart.

Clinical Pearl

Doxorubicin→heart (LVEF), cisplatin→kidneys+ears (hydrate+audiometry), vincristine→nerves (reflexes): drug maps to organ maps to monitor.

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Component Topics

Chemotherapy Side Effects & NursingChemotherapy
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