AKI Flashcards
What intervention should be used in metabolic acidosis occurring as a result of AKI?
Renal replacement therapy.
What are the 10 functions of the renal system?
Water balance Electrolyte balance Acid-base balance BP maintenance Waste removal Toxin/drug removal Erythropoietin Calcium and phosphate balance Vit D3 synthesis Insulin degradation
What are 3 criteria in the diagnosis of AKI?
Increase in serum creatinine 26micromol/L within 48 hours.
Increase in serum creatinine >1.5 x above baseline within 1 week
UO of <0.5ml/kg/hr for >6hrs
What is the molecule looked for to assess AKI?
Serum creatinine
What are the diagnostic criteria for AKI stage 1?
Serum creatinine >26micromol/L in 48 hrs
UO <0.5ml/kg/hr for 6hrs
What are the diagnostic criteria for AKI stage 2?
Serum creatinine >2 x baseline
UO <0.5ml/kg/hr for >12hrs
What are the diagnostic criteria for AKI stage 3?
Serum creatinine >3 x baseline
UO <0.3ml/hr/kg for 24 hrs
Normal serum creatinine levels?
55-120umol/L
What are example baseline risks for AKI?
Older Diabetes mellitus Chronic kidney disease Heart failure Hypertension Liver failure Male Race Hypoalbuminaemia Arterial vascular disease
What are example acute risks of AKI?
Sepsis Hypotension Volume depletion Rhabdomyolysis Cardiac/vascular surgery Organ transplantation Compartment syndrome Mechanical ventilation
What are example nephrotoxic agents?
Contrast
Antibiotics
Chemotherapy
NSAIDs
What are example causes of intrinsic AKI?
Acute tubular injury: pro-longed pre-renal AKI; rhabdomyolysis; nephrotoxins
Glomerulonephritis
Vasculitis
What are example causes of post renal AKI?
Kindey stones
Prostatic hypertrophy
Tumours
Retroperitoneal fibrosis
What are example causes of pre-renal AKI?
Sepsis Hypovolemia Hepato-renal syndrome Cardiac failure Hypotension
What are examples of cardiac pre-renal AKI?
Heart failure Myocardial infarction Arrhythmia Pulmonary Embolism Shock Tamponade