Significant Methadone Dosing Error Due to Incorrect Order Entry and Failure to Follow 5 Rights
Summary
The deficiency involves the facility’s failure to ensure a resident was free from a significant medication error when methadone was ordered, entered, verified, and administered incorrectly. The resident, who was non-verbal, on hospice care, and had multiple serious diagnoses including epilepsy, PURA syndrome, pneumonitis, sepsis, dysphagia, and gastrostomy status, was admitted with hospice orders for Methadone 10 mg/mL concentrate, 0.5 mL (5 mg) via G-tube every eight hours as needed for pain. Hospice documentation showed this order and indicated the methadone had been last filled shortly before admission. However, the facility’s Physician’s Order Sheet and MAR were entered as Methadone HCL oral solution 5 mg/5 mL, with instructions to give 5 mL three times a day for pain, which did not match the hospice order or the concentration on the bottle brought from home. The resident’s medications were supplied by family from home, including an opened bottle of methadone, contrary to the facility’s policy that discouraged use of medications brought in from outside and required verification of contents and labeling by the DON, attending physician, and consultant pharmacist. The DON stated the medications from home were supplied by a family member who was also an LPN at the facility, and that the facility pharmacy did not verify these medications. The hospice Medical Director and facility pharmacist both indicated that hospice medications were normally verified by hospice pharmacy and that opened bottles from home would not typically be accepted by a facility because contents could not be verified. Hospice RN A reported that when they attempted to perform medication reconciliation at the facility, staff declined, stating the medications had already been verified and entered into the computer system. Multiple nurses failed to follow the facility’s policies and the five rights of medication administration by not comparing the MAR orders to the methadone bottle label. LPN A, on the first day working with the resident, administered 5 mL of methadone instead of the intended 0.5 mL, relying solely on the MAR entry and not checking the bottle against the order, despite noticing a discrepancy between the computer screen and the bottle. LPN B reported administering methadone doses by following the directions on the bottle but did not compare them to the computer order and also signed off a dose that another nurse actually gave. LPN C stated they administered the dose on the bottle without looking at the MAR and acknowledged not following the five rights. The DON confirmed that the methadone order had been entered incorrectly into the MAR as 5 mL instead of 0.5 mL and that the error was only discovered when LPN A requested assistance documenting a spilled dose in the narcotic tracking system, revealing that the resident had received a total of 25 mg instead of the prescribed 5 mg. On the day of the significant medication error, LPN A prepared and administered the methadone dose via the resident’s feeding tube according to the incorrect MAR order of 5 mL three times a day. After spilling the initial dose, LPN A obtained and administered a replacement dose and later approached the DON to help document the waste in the electronic narcotic tracking system. During this process, they discovered that the system indicated a 0.5 mL dose, not the 5.0 mL that had been given. The DON reported that the nurse had not performed required safety checks, had not alerted the DON before administration despite noticing a discrepancy, and that the resident had been sleeping with respirations of 14–16 per minute when assessed later that day. The hospice Medical Director confirmed that the correct dose was 0.5 mL of a 10 mg/mL solution and that 5.0 mL equaled 50 mg, far exceeding the intended dose. These combined failures in order transcription, medication reconciliation, pharmacy verification, and adherence to medication administration policies led to the resident receiving a significantly higher dose of methadone than prescribed. The facility’s own policies required that medications be administered in accordance with prescriber orders, that staff verify the five rights of medication administration by checking the label three times against the MAR, and that medications brought in from outside be discouraged and, if used, verified by the DON, attending physician, and consultant pharmacist. Despite these policies, the methadone order from hospice (0.5 mL of a 10 mg/mL concentrate) was not accurately transcribed into the facility’s electronic system, the opened bottle from home was accepted without verification by the facility pharmacy, and multiple nurses administered methadone without reconciling the MAR with the bottle label. Hospice RN A stated that if they had been allowed to complete medication reconciliation, they would have caught the discrepancy between the order and the bottle. The combination of incorrect order entry, failure to reconcile hospice and facility records, acceptance of unverified home medications, and repeated failure by nursing staff to follow the five rights directly led to the significant medication error for this resident.
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