Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 57

The majority of casts are formed in the:

A. Proximal convoluted tubules

B. Ascending loop of Henle

C. Distal convoluted tubules

D. Collecting ducts

Step 1 of 2

Casts:

Casts are cylindrical in nature formed in kidney and found in urinary sediment.

• It was first described by Henry Bence Jones

• The collecting ducts and distal convoluted tubules of kidney produce casts

• Although it is formed in collecting ducts and distal convoluted tubules, the majority of casts are formed in distal convoluted tubule

• The major component of casts is uromodulin

Therefore, maximum casts formed in “Distal convoluted tubule”. Hence the correct answer is option .