Does anyone routinely get a BUN and Creatinine prior to CT scaning?Who orders them? How does the department get the results? What is the cut off for to scan or not to scan? Who do you hydrate? Who do you use mucomyst on? How soon before the scan do you get the blood work? Can the bloodwork be, say, a month old? I am trying to write a protocol for this and make the referring physician responsible for it. I would have no problem having the results sent to me and logging them for CT and setting up a short stay bed for hydration. Oh, another question, How much fluid do you hydrate them with?Any help would be appriciated. Thanks in advance....
Anne Patterson RN, CRN
All of my experience in this arena is related to trauma. To begin with, we usually order a full set of labs on every admit we get. Then we subsequently order any additional tests, radiology included.
CT will call us if we order a CT with contrast and ask us for the values of the BUN and CRT, I unfortunately do not know what their cut off is, but I am usually reluctant to give contrast to patients with CRT > 2. This includes PO and IV contrast.
Usually we will do an ultrasound to assess a belly when the patient has a high CRT, or if the picture apears to warrant it, the patient will go straight to surgery for an ex-lap. Otherwise most of our patients can wait to be rehydrated in the ICU and get the scan later. We usually base our fluid replacement on the value of the base deficit on the ABG.
Hope that helped.
Last edit by nilepoc on Oct 9, '01