Urine Microscopy Flashcards
1
Q
> 3 erythrocytes per high powered field
A
Hematuria
2
Q
Dysmorphic erythrocytes -OR-
Microscopic hematuria and proteinuria
A
Glomerular disease
Atheroembolic/thromboembolic disease
Intrarenal vascular disease - vasculitis, malignant hypertension, TTP-HUS
3
Q
Isomorphic normal-appearing erythrocytes and absence of protein
A
Nonglomerular disease
4
Q
Leukocyte cast
A
Acute interstitial nephritis
Renal parenchymal disease
5
Q
Eosinophils
+/- pyuria, leukocyte casts
A
Acute interstitial nephritis
AKI due to drug-induced interstitial nephritis
Rapidly progressive glomerularnephritis, protstatits, renal athreroemboli, small-vessel vasculitis
6
Q
Broad muddy brown casts
A
Acute tubular necrosis
7
Q
Coarse tubular casts, crystalluria, urinary light chains
A
Intrarenal tubular obstruction
