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Dialysis Allam Rizqallah The Palestinian Kidney Transplant Center S.A.H1/2/2005
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Dialysis Is a process where by the solute composition of solution A is altered by exposing solution A to a second solution B through semipermiable membrane. Is a process where by the solute composition of solution A is altered by exposing solution A to a second solution B through semipermiable membrane.
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Physiologic principles 1. Diffusion the movement of small molecular weight solutes ( waste products ) through semipermiable membrane. the movement of small molecular weight solutes ( waste products ) through semipermiable membrane. 2. Ultra filtration:- Performed for the purpose of removing water accumulated either by ingestion of fluid or metabolism of food through semipermiable membrane
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The purpose of flow is to maximize the concentration difference of waste products between blood & dialysate in all parts of dialyser. The purpose of countercurrent flow is to maximize the concentration difference of waste products between blood & dialysate in all parts of dialyser.
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H.D Equipments 1. Dialyser. 2. Dialysis solution. 3. Extracorporeal circuit. 4. Dialysis machine. 5. Vascular access.
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Hemodialysis Process
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Dialyser
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Dialysis solution
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Extracorporeal circuit
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Dialysis machine
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Vascular access Temporary 1. Subclavian catheter. 2. Jugular catheter. 3. Femoral catheter.
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Vascular access – cont’d Permanent Permanent Arteriovenous fistula Arteriovenous fistula ( A.V.F ). ( A.V.F ). Arteriovenous graft. Arteriovenous graft.
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A.V.F
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Arteriovenous graft
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A.V.F Subcutaneous anastomosis of artery to vein Subcutaneous anastomosis of artery to vein Safe & long lasting permanent access. Safe & long lasting permanent access. Avoid …… Avoid …… 1. Measuring B/P. 2. Withdrawing blood samples. 3. Wearing tight clothes. 4. Carrying heavier materials.
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H.D Carried in hospitals only. Carried in hospitals only. 3 session/week, 4 hrs /session. 3 session/week, 4 hrs /session. Nursing care is observation & intervention. Nursing care is observation & intervention. Heparin 5000 i.u / session total. Heparin 5000 i.u / session total. Blood is returned back to patient after terminating dialysis. Blood is returned back to patient after terminating dialysis.
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Complications during H.D Hypotension. Hypotension. Muscle cramps. Muscle cramps. Chest pain. Chest pain. Itching. Itching. Nausea & vomiting. Nausea & vomiting.
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Thank you Allam Rizqallah The Palestinian Kidney Transplant Center S.A.H S.A.H1/2/2005
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