"Mag Sulfate" Mystery!

Magnesium Sulfate is often quite effective in slowing contractions. I was informed this young female, who was 23 weeks gravid, was on a "Mag" drip. The Premature Contraction protocol was visible on the nursing station wall when we arrived. She was in no distress and waiting to be transferred to UMC in Fresno, California. After receiving a turnover from the patient's nurse, I and my partner Paul, went over to her bedside to transfer her onto our gurney. As I did a quick physical assessment, I also checked what solutions she had in her IV; Normal Saline, as well as wait, what, Potassium Chloride (K+Cl‾)?! I went back over to the protocol on the wall to confirm the medication, "Magnesium Sulfate" was listed. I bee-lined over to the patient's nurse and told her of the discrepancy. After a silent expletive came from her lips, without saying a word, she jumped up and hurried to the patient's bedside, confirmed my findings, stopped and disconnected the (K+Cl‾), went over the closet, pulled out a Magnesium Sulfate piggyback, returned to the patient, plugged it in, reset and restarted the pump. She sincerely thanked me. Paul and I then continued our transfer.

https://youtu.be/qj0iwOtdKqMsi=ew4uSuYF0QJFCSRU&t=140