Steve1967

Hi thanks for the feedback . You are right I don't practice in the states although I have practised in a few different countries in the last few years . Heamodiafiltation is very common now days it combines both diffusive qualities of dialysis and the convective qualities of haemofiltration . It provides much better clearance of larger weight molecules such as B2M , it also provides better cardiovascular stability whilst being treated . The online fluid is generated from dialysate concentrates and water which goes through three ultrafilters in the machine to ensure no endotoxin contamination . The treatments are the same as dialysis in terms of time , pump speeds etc. Although the dialysate flow should be increased as the substitute fluid is diverted from there , anywhere between 9-50litres a session are used and the fluid administered pre or post dialyser . Most units have been using HDF for a few years now especially for patients who have been on dialysis for a few years and no transplant imminent . If cost is not a problem I know of units where every patient is treated using HDF .

Hi , thanks for the reply although I'm already fully aware how to take bloods pre and post haemodialysis . My initial query was solely directed at haemodiafiltration . I wanted to know if the hdf and the large volumes of online substitution fluid would in any way influence my post treatment blood result . If so what would the course of action be to obtain a correct sample . Would taking the machine out of hdf mode and putting back to normal haemodialysis be a solution ?

General monthly bloods u + e's .

Hi everyone , I'm just looking for some info on post blood sampling on HDF . Our unit is very small and we have only ever done dialysis up until now . Is there any protocol for sampling blood on HDF eg . do we cease HDF and go back to dialysis for sampling , if so how long for ? If we keep the patient in HDF will it alter the blood sample ? any input much appreciated