A quick reference guide to haemofiltration and renal failure March ...
A quick reference guide to haemofiltration and renal failure March ...
A quick reference guide to haemofiltration and renal failure March ...
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Molecules are measured in dal<strong>to</strong>ns (Da), which represents their<br />
‘size’. The size of the molecule will determine whether that<br />
molecule will be moved through the haemofilter membrane.<br />
Diffusion or convection are the mechanisms for transport of the<br />
molecules.<br />
Molecule Molecular Weight<br />
Sodium 33<br />
Calcium 40<br />
Urea 60<br />
Creatinine 113<br />
Uric acid 168<br />
Dextrose 180<br />
Vitamin B12 1352<br />
Myoglobin 17 000<br />
Albumin 68 000<br />
Globulin 150 000<br />
Red blood cells, white blood cells, bacteria <strong>and</strong> virus’ are larger.<br />
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