Failure to Monitor Required Labs for Magnesium Oxide, Amiodarone, and Levothyroxine
Summary
The facility failed to ensure that three sampled residents were free from unnecessary drugs because required laboratory monitoring was not completed for medications that affect lab values. Resident 3 had an active order for magnesium oxide 400 mg by mouth three times daily for hypomagnesemia, and the record showed a low magnesium level of 1.3 on the last documented lab result. RN 1 stated that magnesium levels should be checked after a resident is started on magnesium, but there were no orders for follow-up magnesium labs and no labs were drawn after the resident began taking the medication. The DON also stated there were no labs completed after the documented magnesium result and that the resident’s magnesium levels should have been checked since the medication was started. Resident 79 had an active order for amiodarone HCl 200 mg by mouth daily for CHF, and the DON stated the resident started amiodarone on 3/28/26. The DON stated TSH labs should have been done when the resident was started on amiodarone so the medication could be adjusted if needed. The record review and interview showed no TSH monitoring was completed for this resident after the medication was started. The professional reference cited in the report stated amiodarone can cause hypothyroidism or hyperthyroidism and that thyroid function should be monitored prior to treatment and periodically thereafter. Resident 150 had an active order for levothyroxine sodium 100 mcg by mouth daily for hypothyroidism. RN 1 stated the EHR showed no TSH labs were completed for monitoring, and the resident was on hospice. The DON stated that even though the resident was on hospice, the expectation was for TSH labs to be completed and that the therapeutic level should be monitored so the medication could be adjusted. The cited drug reference stated that adequacy of levothyroxine therapy should be assessed by periodic laboratory testing and clinical evaluation, with serum TSH monitored after dosage changes and every 6 to 12 months when stable.
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