Factors Promoting Cast Formation

This version of the course is no longer available.
Need multiple seats for your university or lab? Get a quote
The page below is a sample from the LabCE course The Urine Microscopic: Microscopic Analysis of Urine Sediment [retired 6/23/2016]. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about The Urine Microscopic: Microscopic Analysis of Urine Sediment [retired 6/23/2016] (online CE course)
Factors Promoting Cast Formation

The following factors promote the formation of casts in the kidney:

  • Larger than normal amounts of plasma proteins entering the tubules
  • Decreased pH
  • Decreased urinary flow rate
  • Increased urine concentration
After formation, casts are loosened from the tubules and discharged into the urine.