What Does ATO Mean in Medical Terms?

ATO stands for arsenic trioxide. Leukemia drug used with ATRA.

Where you will see ATO

You will most often see ATO in medication orders and prescriptions, blood results and cancer treatment charts.

Example

A medication order might be written with “ATO” as shorthand for arsenic trioxide.

Related abbreviations

• 3% saline — three percent saline (hypertonic)
• 3D-CRT — three-dimensional conformal radiation therapy
• 4F-PCC — four-factor prothrombin complex concentrate
• 4Ts — 4Ts score
• 5-FU — fluorouracil
• 6-MP — mercaptopurine
• 6-TG — thioguanine
• 7+3 — seven plus three induction

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