21 results
Prerenal Acute Kidney Injury - Diagnostic Schema

Hypovolemia 
Hypervolemia 
Hypotension 
Vessels 

#Prerenal #Acute #Kidney #Injury #AKI #Diagnosis
Prerenal Acute Kidney ... Vessels #Prerenal
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
Injury ( AKI ) - Prerenal ... Kidney #Injury #Prerenal
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Classification Prerenal ... rhabdo, prolonged prerenal
Acute Kidney Injury (AKI) - Common Patterns on Urinalysis
 - Prerenal
 - ATN
 - AIN
 -
Urinalysis - Prerenal
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
< 1% suggests prerenal
BUN/Creatinine ratio differentiate between acute and chronic renal disease.
Prerenal azotemia appears when there is poor renal
Prerenal azotemia ... Prerenal acute failure
Medications causing Acute Kidney Injury (AKI)
Prerenal:
 • Dehydration: Diuretics
 • Altered intrarenal autoregulation: ACEIs / ARBs,
Kidney Injury (AKI) Prerenal
Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Prerenal:
 • Due to true volume loss or decreased
Diagnosis Framework Prerenal
Acute Kidney Injury - Differential Diagnosis Framework
PRERENAL:
 - Intrarenal vasoconstriction-hemodynamically mediated
 - Systemic vasodilation
 - Volume
Diagnosis Framework PRERENAL
DRESS Syndrome vs SJS/TEN
DRESS
 • Latency: 2-8 weeks
 • Rash: Morbilliform
 • Mucosal involvement: 50% have
10% • Kidney: Prerenal