When pharmacy staff started adding adrucil solution to cadd medication 50ml cassette reservoir ref# (b)(4) lot number 14x324 expiration date 2019-06.The liquid medication started leaking from under the blue anti flow tab on the cassette.Compounding with a second cassette was attempted with the same result.The other three cassettes, still on hand, with the same lot number were sequestered and a different lot numbered cassette was used to complete the compounding without incident.Previous reports of leaks were attributed to new phaseal devices being attached for safety precautions for the pt and caregivers.When those reports seemed to escalate, the cassettes were brought back for examination, but usually could not be attributed to the add-on devices or pump.One cassette was reported to be leaking form the cassette, but the origin of the actual leak could not be determined upon examination when it was returned to the pharmacy.
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