You might (discretely) inquire of the Radiologist or one of the Radiology Nurses if this is protocol. You might approach it thus: "I was concerned when a PICC was recently declotted by the tech, using a wire. Wouldn't this push any clot or debris into the pts vascular system??? Is this technique a last-ditch effort? Is it written as protocol?" etc. I have to assume (yes, I've gotten in trouble before, for assuming things!) this tech checked with the Radiologist and received his/her OK for the wire "intervention."
My other thoughts are: was sterile procedure followed? There should have been a sterile field, the wire sterile, and at the VERY least, the tech should have worn sterile gloves and possibly mask (am I old-fashioned, here??). PICC hub should have been cleansed/disinfected, and wire length measured before insertion, so it didn't extend beyond the tip of the PICC. (It WAS a PICC in the SVC, right?? Not just a triple-lumen with its tip in the forearm .somewhere . .)
Would it have been very difficult to place a new PICC line in this particular pt? Perhaps the Radiology staff knew this, and chose the wire technique (risk VS benefit) to preserve what little access was available.
It's so hard to trouble-shoot this, not knowing the pt or the details! Hope you can find the answers you seek. Keep asking questions! --- Diana