Presented by/ Lareen Abo-Seif Definition of ARF. Etiology of ARF. Pathophysiology of ARF. Clinical manifestations of ARF. Diagnostic evaluation of ARF. Therapeutic management of a child suffering from ARF. Nursing care of a child suffering from ARF. Is the failure of kidneys to function, when kidneys are suddenly unable to regulate the volume and composition of urine appropriately. Pre-renal Blood loss: hemorrhage. Plasma Fluid cause: loss: burns. loss & dehydration: diarrhea, vomiting or DKA. Septicemia. Renal cause: Glomerulonephritis. Ischemia to the kidneys. Leukemic infiltration of the kidneys. Post-renal Anatomic cause: or functional obstruction of kidneys: stone or atresia. Pre-renal failure lead to decreased perfusion to kidneys leading to ischemia and cellular swelling and injury and eventually cell death. Renal failure lead to actual ischemic damage to kidneys. Post-renal failure is due to the obstruction of urine outflow, leading increased pressure inside to the kidneys and decreasing the renal function. thus Specific: Oliguria • Anuria uncommon (except in obstructive disorders) Nonspecific: • Nausea • Vomiting • Drowsiness • Edema • Hypertension Manifestations of underlying pathologic condition. disorder or Azotemia is the accumulation of nitrogenous waste within the blood. Uremia is a more advanced condition in which retention of nitrogenous products produces toxic symptoms. Azotemia is not life threatening, uremia is a serious condition that involves other body systems. often BUN. serum creatinine. sodium, potassium, and calcium. The main objectives: (1) treatment of the underlying cause. (2) management of the complications. (3) provision of supportive therapy within the constraints imposed by the renal failure. The avoidance substances substances as of is crucial, include ibuprofen, nephro-toxic NSAIDs many these such antibiotics as gentamicin. Treatment of poor perfusion resulting from dehydration consists of volume restoration. Foley catheter is inserted to rule out urine retention or to aid in collecting urine for analysis or to monitor results of diuretic administration. Hyperkalemia. Hypertension. Anemia. Seizures. Cardiac failure. Pulmonary edema. Assessment: Meticulous assessment of fluid intake and output Assessment of signs of fluid imbalance and vital signs. Observe signs of complications. Observe for marked Weight loss, inadequate growth. Altered Nutrition: Less Than Body Requirements related to restricted diet Risk for Injury related to accumulated electrolytes and waste products Limiting fluid intake is crucial. Rationing the intake of small amounts of fluid in large containers give the impression of larger volumes. When nourishment is provided by the IV route, careful monitoring essential to prevent fluid overload. is nursing measures such as maintaining an optimal thermal environment and reducing restlessness and anxiety are used to decrease the catabolism. Fluid and acidosis, nitrogenous electrolyte and imbalances, accumulation waste products produce coma, seizures. of can Recreational activities are most encouraged than physical activity. Non-pharmacological measures to relive pain is encouraged due to many painful diagnostic and therapeutic modalities. Dialysis is the process of separating colloids and crystalline substances in solution by the difference in their rate of diffusion through a semipermeable membrane. Methods of dialysis are: peritoneal dialysis, hemodialysis and hemofiltration. Requires the creation of a vascular access and the use of special dialysis equipment as the hemodialyzer. Vascular access may be one of three types: fistulas, grafts, or external vascular access devices. An arteriovenous fistula is an access in which a vein and artery are connected surgically. The preferred site is the radial artery and a forearm vein that produces dilation and thickening of the superficial vessels of the forearm to provide easy access for repeated venipuncture. Hemodialysis is the best for children who live close to a dialysis center. The procedure is usually performed three times per week for 4 to 6 hours, depending on the child’s size. Hemodialysis achieves rapid correction of fluid and electrolyte abnormalities but can cause problems in association with this rapid change, such as muscle cramping and hypotension. Disadvantages include school absence during dialysis and strict fluid and dietary restrictions between dialysis sessions and Boredom for the child and family. Growth rate and skeletal maturation improve, but recovery of normal growth is infrequent. In many although completion. cases, sexual delayed, development, progresses to