# A nurse drew up morphine 4 mg from a 10 mg prefilled syringe and administered the patient's ordered dose. Which actions are required to manage the remaining 6 mg correctly under DEA and Joint Commission rules for Schedule II controlled substances? Select all that apply.

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> subject: Adverse Effects/Contraindications/Interactions  
> category: PPT

## Question

A nurse drew up morphine 4 mg from a 10 mg prefilled syringe and administered the patient's ordered dose. Which actions are required to manage the remaining 6 mg correctly under DEA and Joint Commission rules for Schedule II controlled substances? Select all that apply.

1

Have a second licensed witness observe the wasting and co-sign the controlled substance record at the time of waste.

2

Report to the supervisor and pharmacy any discrepancy or suspicion of diversion (counts off, missing waste, altered records).

3

Document the waste in the automated dispensing cabinet (ADC) system and on the controlled substance record with date, time, amount, and reason.

4

Store the remaining 6 mg in the patient's medication drawer for potential use later in the same shift if the patient requests pain relief.

5

Waste the remaining 6 mg in a non-recoverable form (sharps container with absorbent or designated DEA-compliant device) immediately after administration.

## Explanation

Federal DEA regulations and Joint Commission Medication Management standards require that any unused portion of a Schedule II controlled substance be wasted immediately after administration in a non-recoverable form, witnessed by a second licensed staff member, and documented in real time in both the automated dispensing cabinet and the controlled substance record. Diversion (theft or unauthorized use of controlled substances) is a sentinel-level safety and legal concern; any discrepancy or suspicion must be reported to the supervisor and pharmacy immediately. Choice 4 is incorrect — storing leftover narcotic in a patient drawer for later use violates federal regulations on controlled substances and creates a diversion opportunity. Schedule II drugs cannot be stored outside the approved secure system.

## In-depth explanation

Schedule II drugs are the federal DEA classification for substances with high abuse potential and accepted medical use, including morphine, hydromorphone, fentanyl, oxycodone, and methylphenidate. Strict storage, prescribing, dispensing, witnessed waste, count, and documentation requirements apply. Witnessed waste is required for any unused portion: performed immediately after administration with a second licensed witness present who co-signs the record at the time of waste, with the drug rendered non-recoverable (sharps container with absorbent material or a DEA-compliant disposal device) and documented in real time in both the ADC and the controlled substance record. Diversion — theft, unauthorized use, or substitution of controlled substances — must be recognized through red flags such as count discrepancies, missing or altered waste records, repeated reports of "wasted" full doses, patient pain not controlled by reportedly administered doses, and missing prefilled syringes. Mandatory reporting goes to the supervisor, pharmacy, and (per institutional policy) compliance and law enforcement.

## Clinical scenario

A nurse drew up **morphine 4 mg from a 10 mg prefilled syringe** and administered the ordered dose, leaving **6 mg unused**. The nurse plans correct disposition under DEA and Joint Commission rules for **Schedule II controlled substances**.

## Key concepts

- **Schedule II Controlled Substances** — Federal DEA classification for drugs with high abuse potential and accepted medical use (e.g., morphine, hydromorphone, fentanyl, oxycodone, methylphenidate). Strict storage, prescribing, dispensing, witnessed waste, count, and documentation requirements.
- **Witnessed Waste Procedure** — Required for any unused portion. Performed immediately after administration with a second licensed witness present, who co-signs the record at the time of the waste. Drug must be rendered non-recoverable (e.g., sharps container with absorbent material or DEA-compliant disposal device). Documented in real time in the ADC and on the controlled substance record.
- **Diversion Recognition** — Diversion = theft, unauthorized use, or substitution of controlled substances. Red flags: count discrepancies, missing or altered waste records, repeated reports of "wasted" full doses, patient pain not controlled by reportedly administered doses, missing prefilled syringes. Mandatory reporting to supervisor, pharmacy, and (per institutional policy) compliance and law enforcement.

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