You are preparing to administer a PRN medication for pain. After your assessment of the client for pain you open the narcotics cabinet with the special key. Your calculations indicate that the client will be getting $0.8 \mathrm{mLs}$ of the medication and the unit dose vial is $1 \mathrm{~mL}$. You discard the excess of $0.2 \mathrm{mLs}$ into the sink drain and enter the client's room. After you identify the client using two unique identifiers, the client refuses the medication. You then discard the $0.8 \mathrm{mLs}$ into the sink and document the client's refusal on the narcotics count record. What have you failed to do during this process?
Correct Answer: A
Rationale: Narcotic waste (A) requires a witness for both amounts.