Which option correctly identifies a safety measure to prevent chemotherapy dosing errors?

• A. Verify patient height in inches
• B. Independent dose calculation
• C. Use of abbreviations in drug clarification
• D. Use of full trade name of the drug

Answer: (B)

Double-checking the chemotherapy dose with an independent calculation provides a crucial safety net. When dosing chemo, the numbers are often based on weight or body surface area and can involve complex conversions and small decimals. A second clinician or pharmacist repeating the calculation helps catch arithmetic mistakes, decimal misplacements, or unit errors before the drug is administered, which is essential given the narrow therapeutic window and potential for serious toxicity.

The other options don’t offer this fail-safe. Verifying height alone isn’t a reliable safety net for dosing, since dosing primarily hinges on weight or body surface area. Using abbreviations in drug clarification increases the risk of misreading or miscommunicating a drug or dose. Relying on the full trade name can cause confusion with look-alike or similar-sounding names, whereas clear, unambiguous naming and independent calculation together minimize those risks.