Pt x experienced tachysystole about 5 mins after oxytocin was begun at 2 milliunits/min per usual oxytocin induction orders.The nurse mixed the drug using vial2bag device with 2 vial connectors (13 mm) and 2 x 1 ml vials of drug.The nurse immediately discontinued the drug and administered a bolus of lactated ringers; then oxytocin was started again with the same immediate effect.The drug was discontinued.After this was reported it was learned that other nurses experienced similar effects from the drug.In other words, they were experiencing immediate, intense, unexpected effects of the drug as soon as it was begun, and before any titration occured.It began to raise suspicion that pooling of the drug was taking place and pts were potentially receiving a bolus of drug after hook up.Background xxx recently switch to nurse-admixed oxytocin to allow for more convenient access to the drug, as well as having it at room temperature (as opposed to a refrigerated bag from the pharmacy compounded bag).After assessment of available products and education to the maternity nursing staff, the decision was made to use the vial2bag product by west pharma.Assessment: when pharmacy learned of the reported event, the decision was made to immediately discontinue point of care admixture and the resume pharmacy compounded oxytocin.In addition, a test was set up using food coloring and/or colored drugs to visualize what was happening.Exact set ups were created to mimic norepinephrine, dexmedetomidine, and oxytocin the three drugs being admixed in this manner in the hospital.The findings were that pooling was occurring with the oxytocin set up but not the others.See the photo below with cyanocobalamin as the test drug for the oxytocin set up.You can see that a small amount of concentrated drug is stuck in the tubing and will not travel up to the bag.This is the site where the iv spike / tubing is inserted.Recommendation: the company was notified and is beginning internal investigation.They made visit on xx/xx/2018 to xxx.Immediate discontinuation of this process for oxytocin occurred on xx/xx/2018.Investigation of other pts is underway.Reviewing potential cases of postpartum hemorrhage possibly related to subtherapeutic oxytocin.Shared with system hospital pharmacy leaders.Reporting to fda and ismp.Reporter's recommendations : the company was notified and is beginning internal investigation.They made a visit on xx/xx/18 to xxx.Immediate discontinuation of this process for oxytocin occurred on xx/xx/2018.Investigation of other pts is underway.Reviewing potential cases of postpartum hemorrhage possibly related to subtherapeutic oxytocin.Shared with system hospital pharmacy leaders.Reporting to fda and ismp.(b)(6), access number: (b)(4).
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