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

PRE-RENAL 
Impaired perfusion: 
•
of Acute Kidney Injury ... Glomerulonephritis ... /phimosis #Diagnosis ... Acute #Kidney #Injury ... #Differential #Nephrology
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
to Acute Kidney Injury ... /urea/protein/Cr ... related) - Glomerulonephritis ... AcuteKidneyInjury #AKI #Nephrology ... #Diagnosis #Algorithm
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
failure (glomerulonephritis ... injury), Coags ... o infection • Echocardiogram ... progressive (crescentic) glomerulonephritis ... #differential #diagnosis
Drug Induced Kidney Injury
 • Pre-Renal: NSAIDS, CNI, ACEI/ARB, IL-2 therapy, Diuretics CAR-T therapy
 • Osmotic
• Pre-Renal: ... therapy, Diuretics CAR-T ... induced vasculitis, TMA ... #differential #diagnosis ... #algorithm #nephrology
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 • Cardiac failure: Impaired forward flow,
of Acute Kidney Injury ... - Differential Diagnosis ... HEMODYNAMIC • Cardiac failure ... Glomerulonephritides ... #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Differential Diagnosis ... • Trauma/Crush injury ... insufficiency/Failure ... TPN 5. ... potassium #high #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Differential Diagnosis ... • Trauma/Crush injury ... insufficiency/Failure ... TPN 5. ... potassium #high #nephrology
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Antibiotics (Bactrim, PCN ... , rhabdo/crush injury ... Failure, esp w ... Definitive in ESRD or failure ... Treatment #potassium #nephrology
#ICUCard
RENAL
GFR
90-131
mL/min
((140-age)*Wt)/(72*Cr)
Glomerular Filtration Rate (Cockcroft)
CI Cr
90-131
mL/min
(CrU * volume)/CrS
Creatinine Clearance
FENa
0.0-1.0
%
((U/P Na)/(U/P Cr))*100
Fractional Excretion of Na+
Na req
mEq
(125-Na)*0.6*Wt
Required Sodium
FE Urea
#ICUCard RENAL ... ) Renal Failure ... mEq/L Na - (Cl ... or spinal cord injury ... units over 1h TPA