We had a presep catheter inserted for a pt for scvo2 monitoring.I did invitro calibration and it was ok until i hit start, after the catheter was inserted.Scvo2 didn't show any activity, so i did invivo calibration and it showed wall artifact or wedge detected, reposition catheter.I repositioned the pt, changed the optic module 3 times and ev1000 monitor as well.Still it didn't work.Recalibrated and continued as it shows in the message.When i hit continue, the monitor shows message fault oximetry: light range.Md requested to keep the line, since the line in situ with cvp monitoring even though no scvo2 monitoring can be obtained.Dates of use: (b)(6) 2014 diagnosis or reason for use: scvo2 monitoring and fluid infusion.Event abated after use stopped or dose reduced: no.Lot# unknown.
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