Casts

UrinalysisAlso known as: Hyaline castAlso known as: Hyaline castsAlso known as: Urinary castsN/A

Detects the presence of protein casts in urine under microscopic examination.

Normal Range
Consult your provider
N/A
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Elevated urinary casts signal potential kidney damage or disease. Regular monitoring helps detect progression of kidney disorders and guides treatment decisions for conditions affecting filtration.

Overview

Urinary casts are cylindrical structures formed from kidney tubule proteins and are visible under microscope examination. A small number may appear normally, but elevated casts suggest kidney stress or disease. They can indicate dehydration, infection, diabetes, hypertension, or glomerulonephritis. Monitoring casts over time helps assess kidney health and the progression of kidney disease. Findings often prompt further kidney function testing.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

53320-8Primary
Casts [Presence] in Urine by Automated
9439-1
Casts [#/area] in Urine sediment by Microscopy high power field
/[HPF]
58436-7
Casts [Type] in Urine sediment by Light microscopy
24124-0
Casts [Presence] in Urine sediment by Light microscopy
9842-6
Casts [#/area] in Urine sediment by Microscopy low power field
/[LPF]
43755-8
Casts [#/area] in Urine sediment by Automated count
/[HPF]
51483-6
Casts [#/volume] in Urine by Automated count
/uL
87827-2
Casts [Presence] in Urine
105895-7
Casts [Presence] in Urine sediment
105894-0
Casts [#/area] in Urine sediment
/[HPF]

Available Lab Tests

Order tests that measure this biomarker

Urinalysis Complete

$18.76
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Urinalysis Complete Test with Reflex to Culture

$24.64