AUBF 2 - Urinary Cast

Question 1

Most frequently seen cast in urine

Answer 1

Hyaline cast

Question 2

Stain used for hyaline cast and what resulting color

Answer 2

Sternhaimer; Pink

Question 3

Non-pathologic cause of Hyaline cast

Answer 3

Strenous exercise
Heat exposure
Emotional Stress
Dehydration

Question 4

Pathologic cause of Hyaline cast

Answer 4

AGN
Pyelonenephritis
Congenital Heart failure
Chronic renal disease

Question 5

Sizes of Hyaline cast

Answer 5

Parallel sides
Rounded end
Cylindroid

Question 6

Greater stasis of urine is found

Answer 6

RBC cast

Question 7

Significance of RBC Cast

Answer 7

Bleeding within nephrons

Question 8

Glomerular damage is associated with

Answer 8

Dysmorphic RBC
Proteinuria

Question 9

Under LPO, RBC cast appears

Answer 9

Orange-red due to Hgb

Question 10

Usually seen with neutrophil attached to a cast

Answer 10

WBC cast

Question 11

Non-bacterial inflammation is associated with

Answer 11

Acute interstitial nephritis

Question 12

Bacterial inflammation is asssociated with

Answer 12

Pyelonenephritis

Question 13

Difference between Pyelonenephritis and Cystitis

Answer 13

Pyelonenephritis (w/ WBC cast)
Cystitis (none)

Question 14

Used to differentiate bacterial cast from granular cast

Answer 14

Gram stain

Question 15

Bacterial cast must be with WBC

Answer 15

Pure or mixed

Question 16

Pathologic form of Epithelial cells

Answer 16

With RTE cells

Question 17

Clinical signficance of Epithelial cast

Answer 17

Advanced tubular obstruction

Question 18

Composed of multiple cells

Answer 18

Mixed celullar cast

Question 19

Mixed celullar cast: GN composed

Answer 19

WBC and RBC cast

Question 20

Mixed cellular cast: Pyelonephritis consist

Answer 20

WBC AND RTE

Question 21

Formed due to celullar degranulation

Answer 21

Granular cast

Question 22

Degranulation of granular cast appears like

Answer 22

Waxy cast

Question 23

Waxy cast stain

Answer 23

Supravital stain: homogenous dark pink

Question 24

Clinical significance of Waxy cast

Answer 24

Extreme urine stasis

Question 25

Other term for Broad cast

Answer 25

Renal failure cast

Question 26

Clinical significance of Broad cast

Answer 26

Widening of tubular walls

Question 27

Fragmented and jagged ends cast

Answer 27

Waxy cast

Question 28

Clinical significance of Fatty cast

Answer 28

Lipiduria: Fatty cast, Oval fat bodies, Free fat droplets

Question 29

Fatty cast is associated with

Answer 29

Nephrotic syndrome DM Crush injuries Toxic tubular necrosis