renal failure
DESCRIPTION
11TRANSCRIPT
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Renal Failure
Acute and Chronic
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Acute Renal Failure
• Pathophysiology
• Types of acute renal failure include:– Prerenal – Intrarenal – Postrenal
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Phases of Acute Renal Failure
• Phases of rapid decrease in renal function lead to the collection of metabolic wastes in the body.
• Phases include:– Onset – Diuretic – Oliguric – Recovery
• Acute syndrome may be reversible with prompt intervention.
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Assessment
• History
• Clinical manifestations
• Laboratory assessment
• Radiographic assessment
• Other diagnostic assessments such as renal biopsy
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Drug Therapy
• Cardioglycides• Vitamins and minerals• Biologic response modifiers• Phosphate binders• Stool softeners and laxatives• Monitor fluids• Diuretics• Calcium channel blockers
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Treatment
• Diet therapy
• Dialysis therapies– Hemodialysis– Peritoneal dialysis
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Continuous Renal Replacement Therapy
• Standard treatment
• Dialysate solution
• Vascular access
• Continuous arteriovenous hemofiltration
• Continuous venovenous hemofiltration
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Posthospital Care
• If renal failure is resolving, follow-up care may be required.
• There may be permanent renal damage and the need for chronic dialysis or even transplantation.
• Temporary dialysis is appropriate for some clients.
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Chronic Renal Failure
• Progressive, irreversible kidney injury; kidney function does not recover
• Azotemia
• Uremia
• Uremic syndrome
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Stages of Chronic Renal Failure
• Diminished renal reserve
• Renal insufficiency
• End-stage renal disease
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Changes R/T CRF
• Kidney • Metabolic –Urea and creatinine
• Electrolytes– Sodium – Potassium
• Acid-base balance• Calcium and phosphorus
(Continued)
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Changes R/T CRF (Continued)
• Cardiac– Hypertension– Hyperlipidemia– Congestive heart failure– Uremic pericarditis
• Hematologic• Gastrointestinal
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Clinical Manifestations
• Neurologic
• Cardiovascular
• Respiratory
• Hematologic
• Gastrointestinal
• Urinary
• Skin
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Imbalanced Nutrition: Less Than Body Requirements
• Interventions include:– Dietary evaluation for:• Protein• Fluid• Potassium• Sodium• Phosphorus
– Vitamin supplementation
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Excess Fluid Volume
• Interventions:–Monitor client’s intake and output.– Promote fluid balance.– Assess for manifestations of volume
excess:• Crackles in the bases of the lungs• Edema• Distended neck veins
– Drug therapy includes diuretics.
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Decreased Cardiac Output
• Interventions:– Control hypertension with calcium channel
blockers, ACE inhibitors, alpha- and beta-adrenergic blockers, and vasodilators.
– Instruct client and family to monitor blood pressure, client’s weight, diet, and drug therapy.
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Risk for Infection
• Interventions include:–Meticulous skin care– Preventive skin care– Inspection of vascular access site for
dialysis–Monitoring of vital signs for manifestations
of infection
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Risk for Injury
• Interventions include:– Drug therapy– Education to prevent fall or injury,
pathologic fractures, bleeding, and toxic effects of prescribed drugs
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Fatigue
• Interventions:– Assess for vitamin deficiency, anemia, and
buildup of urea.– Administer vitamin and mineral
supplements.– Administer erythropoietin therapy for bone
marrow production.– Give iron supplements as needed.
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Anxiety
• Interventions include:– Health care team involvement– Client and family education– Continuity of care– Encouragement of client to ask questions
and discuss fears about the diagnosis of renal failure
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Potential for Pulmonary Edema
• Interventions:– Assess the client for early signs of
pulmonary edema.–Monitor serum electrolyte levels, vital
signs, oxygen saturation levels, hypertension.
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Hemodialysis
• Client selection
• Dialysis settings
• Works using passive transfer of toxins by diffusion
• Anticoagulation needed, usually heparin treatment
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Vascular Access
• Arteriovenous fistula, or arteriovenous graft for long-term permanent access
• Hemodialysis catheter, dual or triple lumen, or arteriovenous shunt for temporary access
• Precautions
• Complications
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Hemodialysis Nursing Care
• Postdialysis care:–Monitor for complications such as
hypotension, headache, nausea, malaise, vomiting, dizziness, and muscle cramps.
–Monitor vital signs and weight.– Avoid invasive procedures 4 to 6 hours
after dialysis.– Continually monitor for hemorrhage.
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Complications of Hemodialysis
• Dialysis disequilibrium syndrome
• Infectious diseases
• Hepatitis B and C infections
• HIV exposure—poses some risk for clients undergoing dialysis
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Peritoneal Dialysis
• Procedure involves siliconized rubber catheter placed into the abdominal cavity for infusion of dialysate.
• Types of peritoneal dialysis:– Continuous ambulatory peritoneal– Automated peritoneal– Intermittent peritoneal– Continuous-cycle peritoneal
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Complications
• Peritonitis
• Pain
• Exit site and tunnel infections
• Poor dialysate flow
• Dialysate leakage
• Other complications
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Nursing Care During Peritoneal Dialysis
• Before treating, evaluate baseline vital signs, weight, and laboratory tests.
• Continually monitor the client for respiratory distress, pain, and discomfort.
• Monitor prescribed dwell time and initiate outflow.
• Observe the outflow amount and pattern of fluid.
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Renal Transplantation
• Candidate selection criteria
• Donors
• Preoperative care
• Immunologic studies
• Surgical team
• Operative procedure
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Postoperative Care
• Urologic management
• Assessment of urine output hourly for 48 hours.
• Complications include:– Rejection– Acute tubular necrosis
(Continued)
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Postoperative Care
(Continued)– Thrombosis– Renal artery stenosis – Other complications– Immunosuppressive drug therapy– Psychosocial preparation