Some of our RDUs are not suitable for central acid, and even those that are will require a business case. Meantime we were hoping to achieve carbon and cost savings through reviewing our acid supplies (Fresenius options attached) – smaller bottles of higher concentrate meaning less plastic, less delivery emissions etc, but we have a question we hoped someone might answer…
Our estimates suggest that 6 litres of the 35x concentrate gives 210 litres of final dialysate, and the ‘A5’ 5 litres of 45x concentrate provides 225 litres i.e. 15 more litres. However, previous use apparently caused inefficiencies, as some sessions required a second canister to be opened. At face value this doesn’t make sense as total dialysate volume is 15L higher with the 45x...
Does anyone know if a proportion of undiluted concentrate is lost at the start during machine set up??
Also, do all centers use ‘Optiflow’ or ‘dialysate flow adaption’ as standard for all their dialysis, and has anyone quantified reductions in dialysate? Though even then, 225 litres should provide enough dialysate for 450 minutes at 500ml/min flow (although some lost in priming and with backfiltration).
Thank you - very helpful!