A dialysis machine contains long tubes coiled in the bank containing dialyzing solution
a) Of what substance are the tubes made?
b) what does dialyzing solution contain?
c) Name the main wastes which passes in to the dialyzing solution.
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Solution
1) These tubes are made up of a semipermeable membrane.The membrane is made up of cellulose or cellulose easter.
2) The composition of dialysis solution is different for different patient and is prescribed by the nephrologist as per the need of an individual patient. However a typical dialysate may contain sodium, potassium, calcium, bicarbonate, magnesium, chloride and glucose.
3) It contain nitrogenous metabolic waste such as urea ,creatinine and excess fluid.