Casts
Casts correct answerssmall molds of kidney tubules
Casts are produced in correct answersDistal tubules or collecting ducts
Tamm Horsfall glycoprotein correct answersAlso Uromodulin. A mucoprotein produced exclusively in the
thick ascending loop or DCT
Conditions favorable to cast formation correct answersAcidic pH, high ionic concentration. As urine flow
within the nephron becomes static cast formation occurs in the DCT.
Elements in the protein matrix of casts can be correct answersRBCs, WBCs, RTE, bacteria crystals
progression of cast formation correct answersAt high urine stasis the elements in the cast begin to
degrade changing from cellular to coarse granular to fine granular to finally waxy. Waxy casts are broad
in diameter (broad casts) and are often seen at severe end stage renal disease.
Stain which can be used to identify hyaline casts correct answersSupravital stain Sternheimer Malbin
with brightfield technique or phase contrast microscope.
Casts are stained what color with Sternheimer Malbin stain correct answersInclusions are stained pink
Hyaline casts correct answersexclusively uromodulin, low refractive index. A few are normal in healthy
individuals
conditions under which hyaline casts are seen correct answersStrenuous exercise, dehydration, fever or
stress.
Cylindroids correct answersA type of hyaline cast. Long with tapering tail, clinically insignificant.
Casts correct answerssmall molds of kidney tubules
Casts are produced in correct answersDistal tubules or collecting ducts
Tamm Horsfall glycoprotein correct answersAlso Uromodulin. A mucoprotein produced exclusively in the
thick ascending loop or DCT
Conditions favorable to cast formation correct answersAcidic pH, high ionic concentration. As urine flow
within the nephron becomes static cast formation occurs in the DCT.
Elements in the protein matrix of casts can be correct answersRBCs, WBCs, RTE, bacteria crystals
progression of cast formation correct answersAt high urine stasis the elements in the cast begin to
degrade changing from cellular to coarse granular to fine granular to finally waxy. Waxy casts are broad
in diameter (broad casts) and are often seen at severe end stage renal disease.
Stain which can be used to identify hyaline casts correct answersSupravital stain Sternheimer Malbin
with brightfield technique or phase contrast microscope.
Casts are stained what color with Sternheimer Malbin stain correct answersInclusions are stained pink
Hyaline casts correct answersexclusively uromodulin, low refractive index. A few are normal in healthy
individuals
conditions under which hyaline casts are seen correct answersStrenuous exercise, dehydration, fever or
stress.
Cylindroids correct answersA type of hyaline cast. Long with tapering tail, clinically insignificant.
