Water is an important element of our being. Too little or too much water can be detrimental to our well-being. As for ESRF patients, water can be a poison as well as a savior.
Too much water can cause complications such as Congestive Cardiac Failure, Pulmonary Edema, and many others. On the other hand, water is essential to ensure a proper haemodialysis treatment can be carried out. Water is the vehicle to transport metabolic waste products and excessive water away from the blood and removed.
To prepare water for haemodialysis treatment, the water needs to be process to ensure it is clean and safe due to the close proximity it will have with the patient’s blood.
Tap water contains insoluble particulates such as iron and silica, soluble organic compounds such as chloramines and soluble inorganic compounds such as calcium and magnesium salts, not forgetting bacteria and pyrogen. All these can cause complications to the patient.
The present preference of a water filtration system is the Reverse Osmosis (RO) system due to the cost and availability factors. Tap water with all its impurities needs to undergo a pre RO preparation. Insoluble particulates are removed by multimedia filter; soluble organic compounds are absorbed by a carbon filter; soluble inorganic compounds are treated by a softener. All these processes are to ensure the feed water to the RO system will ensure high grade product water for the treatment proper.
RO systems which consist of a high pressure pump and semi-permeable membranes produces water 98% pure of dissolved solids and of bacteria and pyrogen. It is always ideal to have a post RO bacterial filter in place to ensure the RO water is safe from any breaches. An interesting point to note each single treatment uses more than 120 litres of RO water whereas we drink 2 litres per day.
A proper maintenance of this system is crucial. Without water no haemodialysis.
Read more http://www.beai.org/waterindial.html
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