Information about a laboratory test

Urinary Casts Present: What Does It Mean?

The cast type is often more informative than the count; RBC, WBC, granular and other casts can be associated with different renal processes.

Test summary

Test name
Urinary Casts
Abbreviations
Urinary Casts
Category
Urinalysis / Microscopy
Panel
Urinalysis
Specimen
Urine
Common units
casts/LPF, qualitative

What does the test measure?

The Urinary Casts test assesses tube-shaped casts and their types seen on urine microscopy.

Why is the test ordered?

It is used to provide microscopic context about renal tubular and glomerular processes.

Information about a low result

Cellular casts are generally absent; a few hyaline casts may be seen in some healthy people.

Information about a high result

The cast type is often more informative than the count; RBC, WBC, granular and other casts can be associated with different renal processes.

Reference and clinical context

Start with the performing laboratory's reference interval, method, collection conditions and reporting unit. Urinalysis findings do not establish a diagnosis on their own.

Reference range 1

Population
Microscopic urine examination
Specimen
Urine
Method
Microscopy

Sourced reference context for Urinary Casts

This is sourced example reference/clinical-context information; the user's own laboratory report and specimen conditions take priority.

Reference ranges may vary by laboratory, method used, age, sex, pregnancy status, and clinical context. The reference range on your own laboratory report takes precedence.

Interpretation notes

Start with the performing laboratory's reference interval, method, collection conditions and reporting unit. Urinalysis findings do not establish a diagnosis on their own. Interpretation may be more informative when related urine parameters are considered together.

Related specialties

  • Urology
  • Nephrology
  • Internal Medicine
  • Family Medicine

Frequently asked questions

Sources

  1. Urinalysis — U.S. National Library of Medicine (MedlinePlus)

    Government medical reference · 2025 · Urinalysis components, routine use and qualitative normal findings · Verified: Aug 12, 2026

  2. Protein in Urine — U.S. National Library of Medicine (MedlinePlus)

    Government medical reference · 2025 · Urine protein interpretation and random urine example range · Verified: Aug 12, 2026

  3. Urinary casts — U.S. National Library of Medicine (MedlinePlus)

    Government medical reference · 2025 · Urinary casts and qualitative normal context · Verified: Aug 12, 2026