Ranal Pathology: USMLE Flashcards
1
Q
Presence of casts in urine
A
indicates that hematuria/pyuria is of glomerular or rental tubular origin
2
Q
hematuria, no casts
A
bladder cancer, kidney stones
3
Q
pyuria, no casts
A
acute cystitis
4
Q
RBC casts in urine indicates
A
glomerulonephritis, hypertensive emergency
5
Q
WBC casts in urine indicates
A
Tubulointerstitial inflammation (AIN)
Acute pyelonephritis
Transplant rejection
6
Q
Granular casts in urine indicate
A
acute tubular necrosis (ATN) - can be “muddy brown” in appearance
7
Q
Fatty casts (oval fat bodies)
A
nephrotic syndrome - associated with maltose cross sign
8
Q
Waxy casts in urine indicate
A
end-stage renal disease/CKD
9
Q
Hyaline casts in urine
A
Nonspecific - can be normal with dehydration, exercise or diuretics
