Safety
Route

sq

Subcutaneous

High risk

Risk

ISMP lists sq as error-prone: subcutaneous may be mistaken as SL/sl (sublingual).

Safer Alternative

Write "SUBQ" or "subcutaneous"

Example

sq misread as sl

Sources

https://online.ecri.org/hubfs/ISMP/Resources/ISMP_ErrorProneAbbreviation_List.pdf