1357 results
Muddy Brown Casts in ATN
#Clinical #Path #Nephro #Urine #Microscopy #MuddyBrownCasts #ATN
Muddy Brown Casts ... in ATN #Clinical ... MuddyBrownCasts #ATN
Core IM: Pearls on Contrast-Induced Nephropathy

Definition: 
 • no slam dunk criteria 
 • definition in
tubular necrosis Diagnosis ... look for signs of ATN ... (muddy brown ... sensitivity —100%) #Diagnosis
Granular & “Muddy Brown” Casts on Urine Microscopy
A. Finely granular cast B. slightly coarser granular cast
Granular & “Muddy ... coarse (c) and muddy ... better appreciated at
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
• "Muddy Brown ... tubular necrosis (ATN ... Contains yellow-tan ... interpretation #diagnosis
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
sample is not fresh at ... Red cell casts - Diagnostic ... renal disease • “Muddy ... Microscopy #Atlas #key #diagnosis
Causes of Acute Kidney Injury - Differential Diagnosis Framework 
Pre-Renal
Post-Renal
Intrinsic Renal:
 • Tubules (ATN)
 • Glomerular:
- Differential Diagnosis ... : • Tubules (ATN ... Interstitium (AIN ... #Differential #Diagnosis
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
cellular casts "Muddy-brown ... Differential #Microscopy #Diagnosis
Acute Kidney Injury (AKI) - Common Patterns on Urinalysis
 - Prerenal
 - ATN
 - AIN
 -
- Prerenal - ATN ... - AIN - UTI ... AKI #Urinalysis #diagnosis
Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Pre-Renal:
 • Hypovolemia, Cardiorenal, Distributive Shock, HRS, Hypercalcemia, Renal
- Differential Diagnosis ... C3/C4, Other • ATN ... Pigment, Protein) • AIN ... #Differential #Diagnosis
Hypertensive Disorders of Pregnancy
Chronic Hypertension:
 • Guidelines as SBP ≥130 or DBP ≥ 90 mmHg
 •
unless severe HTN ... • Diagnosed before ... • First diagnosed ... exact diagnosis ... #differential #diagnosis