Please send a video or easy explanation about the process of hemodialysis
Please send a video or easy explanation about the process of hemodialysis
Hemodialysis is a treatment that performs the job of the kidneys when they stop functioning properly. During hemodialysis, a machine removes salt, water, and waste products from the blood. The treatment can help control blood pressure and balance levels of vitamins and minerals in the body. Hemodialysis is used in people with end-stage kidney failure, which is the last stage of chronic kidney disease.
During the process of hemodialysis , blood is taken out from convenient artery of the patient, cooled to 0°C, mixed with an anticoagulant, such as heparin, and then pumped into a dialyzing unit called artificial kidney. In this apparatus , blood flows through channels or tubes bound by cellophane membrane which is impermeable to macromolecules, such as plasma proteins, but permeable to small solutes such as urea, uric acid, creatinine and mineral ions. The membrane separates the blood flowing inside the channels or tubes from the dialyzing fluid flowing outside the membrane. The dialyzing fluid contains some small solutes and mineral ions, but does not contain nitrogenous waste products, such as urea, uric acid and creatinine. So, these wastes diffuse from the blood to the dialyzing fluid across the cellophane membrane, following the concentration gradient. Thus, the blood is considerably cleared of nitrogenous waste products without losing plasma proteins. Such a process of separating small solutes from macromolecular colloids with the help of a selectively permeable membrane is called dialysis. The blood coming out of the artificial kidney is warmed to body temperature, mixed with an antiheparin to restore its normal coagulability, and returned to a vein of the patient. Hemodialysis saves and prolongs the life of many uremic patients.
Figure : Hemodialysis
Hemodialysis is a treatment that performs the job of the kidneys when they stop functioning properly. During hemodialysis, a machine removes salt, water, and waste products from the blood. The treatment can help control blood pressure and balance levels of vitamins and minerals in the body. Hemodialysis is used in people with end-stage kidney failure, which is the last stage of chronic kidney disease.
During the process of hemodialysis , blood is taken out from convenient artery of the patient, cooled to 0°C, mixed with an anticoagulant, such as heparin, and then pumped into a dialyzing unit called artificial kidney. In this apparatus , blood flows through channels or tubes bound by cellophane membrane which is impermeable to macromolecules, such as plasma proteins, but permeable to small solutes such as urea, uric acid, creatinine and mineral ions. The membrane separates the blood flowing inside the channels or tubes from the dialyzing fluid flowing outside the membrane. The dialyzing fluid contains some small solutes and mineral ions, but does not contain nitrogenous waste products, such as urea, uric acid and creatinine. So, these wastes diffuse from the blood to the dialyzing fluid across the cellophane membrane, following the concentration gradient. Thus, the blood is considerably cleared of nitrogenous waste products without losing plasma proteins. Such a process of separating small solutes from macromolecular colloids with the help of a selectively permeable membrane is called dialysis. The blood coming out of the artificial kidney is warmed to body temperature, mixed with an antiheparin to restore its normal coagulability, and returned to a vein of the patient. Hemodialysis saves and prolongs the life of many uremic patients.
Figure : Hemodialysis
