3041 results
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
Injury ( AKI ) - Prerenal ... • Sepsis • Blood ... Kidney #Injury #Prerenal
Prerenal Acute Kidney Injury - Diagnostic Schema

Hypovolemia 
Hypervolemia 
Hypotension 
Vessels 

#Prerenal #Acute #Kidney #Injury #AKI #Diagnosis
Prerenal Acute Kidney ... Vessels #Prerenal
Acute Kidney Injury - Differential Diagnosis Framework
PRERENAL:
 - Intrarenal vasoconstriction-hemodynamically mediated
 - Systemic vasodilation
 - Volume
Diagnosis Framework PRERENAL ... Glomerular (red blood ... eosinophils/white blood
Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Prerenal:
 • Due to true volume loss or decreased
Diagnosis Framework Prerenal ... effective arterial blood
Acute Kidney Injury (AKI) - Common Patterns on Urinalysis
 - Prerenal
 - ATN
 - AIN
 -
Urinalysis - Prerenal
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Classification Prerenal ... rhabdo, prolonged prerenal
Black and Bloody Stools - Melena and Hematochezia
Melena - Refers to passage of black, tarry (sticky
Black and Bloody ... Occult blood tests ... least 60 mL of blood ... transit is slow, blood ... Red Blood in the
Hemothorax on Lung POCUS with Spine Sign

GSW to left chest.  Perisplenic window focusing on lower
Hemothorax on Lung POCUS ... area of clotted blood ... Note that clotted blood ... Hemothorax #Lung #POCUS
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
< 1% suggests prerenal
Liver Abscess on POCUS
24yo healthy F to ED w/rigors &DCed. 2/2 blood cx + for fusobacterium,
Liver Abscess on POCUS ... rigors &DCed. 2/2 blood ... Abscess #Hepatic #POCUS