Pump speeds for haemo- how fast can you go??

[boswife]

HI munch   and, may i ask what initiates the change of ff for you?  we do 32 always, and never think of changing it.  300 bfr and occasionally go a tad faster if we find we 'need' to be somewhere and didnt account for time.. Just wondering what would be 'your' reasons for altering that?? tell me do

[Speedy1wrc]

EDIT... I forgot to mention my FF is 38.

[lmunchkin]

BW, how you been lady?  Been thinking bout you and Bo.  Hope all is well with you both.  I need to correct my FF perimeters here, its not 33 to 35%, its 30 to 38%.  If I want his session shorter, I could increase current ff by 5% and could shorten his treatment time by around 25mins.  I don't generally feel the need to necessarily shorten his time, I tend to want a more equal balance of dialysate to clean his blood.  Think of it like this: the higher the FF the less saturation of dialysate. So if you go lower FF it allows dialysate to clean longer or in med terms higher saturation of dialysate.  For example: You ran Bo at BFR of 400 FF 35 with Uf goal 1.0 Dialysate at 25L your tx time would be 3.20 Your BLP would be around 80.  Not shabby huh?   But if you increased FF to 40% with all other the same, you will reduce Bo's time to about 2.55 (that is almost 25min) and he will have only processed 70L of Blood. So as is the principle, longer & slower is better. 

I have found (through trail & error) what balance is good for John, and his neph agrees with his treatments. You just have to find what works best for him.  There are so many variables to consider, dialysate volume, weight, compostion levels ect...
But I have choosen FF 33% to be a happy medium at a BFR 370.  I havent had to stray from them as it seems to give him the clearances he needs to feel & function well.

How is the weather there in CA?  It is raining here!  Hope you and everyone has a great Easter tomorrow!

God Bless,
lmunchkin   

[kyshiag]

My husband does 500

[ianch]

Longer and slower is reported to be better.  My Fresensius machine runs on average 8.6 hours a session.  Limited to 8 for Iron infusions as the Heparin pump is full of iron and saline, but on weekends get to 10 hours.  Last week tried 11hrs 15m as a test. 

Our pump speeds are sort of restricted.  I doubt it would be safe going above 300 as the flow rate is set per machine and reduced for long hour patients.  The tech wont come out without authority from the District Health Board and there no way they will approve 9 hours at 400.

Also for me I seem to get more tired if the speed goes up.  I have a high pressure job and cant afford too many complications.   

[ianch]

How time flys.  3 months ago I was talking about 8.6 hours.  Currently my monthly average is 9.96 @ a comfortable 225 pump speed. Thats 135 litres per session as opposed to 63 litres for in-centre (3.5h * 300ml/m).  I think I have a good balance now.
   
Completed a 12 hr test but that was a bit hard on the back.