Hyaline Casts (Urine)
Hyaline casts are clear cylindrical structures formed from Tamm-Horsfall protein in the renal tubules. Small numbers are normal, especially after dehydration, strenuous exercise, or diuretic use. Unlike cellular or granular casts, hyaline casts alone rarely indicate significant kidney disease and are usually considered a benign finding.
2 providers include this
Urinalysis
0-2 per LPF
What is Hyaline Casts (Urine)?
Hyaline casts are clear cylindrical structures formed from Tamm-Horsfall protein in the renal tubules. Small numbers are normal, especially after dehydration, strenuous exercise, or diuretic use. Unlike cellular or granular casts, hyaline casts alone rarely indicate significant kidney disease and are usually considered a benign finding.
Why It Matters
Formed from Tamm-Horsfall protein, small numbers are normal. Increased with dehydration, strenuous exercise, diuretic use, or kidney disease. Unlike other casts, hyaline casts alone rarely indicate serious pathology.
Which Providers Test Hyaline Casts (Urine)?
Full Provider Comparison
| Provider | Includes | Annual Cost | Biomarkers |
|---|---|---|---|
 Superpower | — | $199 | 100+ (150 with ratios) |
 WHOOP Advanced Labs | — | $349 | 65 |
 Labcorp OnDemand | — | $398 | 40+ |
| — | $486 | 40+ | |
| — | $449 | 288 | |
| — | $349 | 100+ | |
| — | $829 | 54 | |
 Function Health | — | $365 | 160+ |
| — | $250 | 65 | |
| — | $495 | 80+ | |
| — | $895 | 100+ | |
| — | $1950 | 130+ | |
| ✓ | $375 | 95+ | |
| — | $Varies | 75+ | |
| ✓ | $190 | 100+ | |
| — | $99 | 50 | |
| — | $124 | 60 | |
| — | $349 | 130+ | |
| — | $349 | 80+ | |
| — | $375 | 85 | |
| — | $700 | 128 | |
| — | $99 | 100+ |
Frequently Asked Questions
What is Hyaline Casts (Urine)?
Hyaline casts are clear cylindrical structures formed from Tamm-Horsfall protein in the renal tubules. Small numbers are normal, especially after dehydration, strenuous exercise, or diuretic use. Unlike cellular or granular casts, hyaline casts alone rarely indicate significant kidney disease and are usually considered a benign finding.
What is the optimal range for Hyaline Casts (Urine)?
The standard reference range for Hyaline Casts (Urine) is 0-2 per LPF. Optimal ranges may differ based on individual health goals and expert recommendations.
Which blood test providers include Hyaline Casts (Urine)?
2 out of 22 blood testing providers include Hyaline Casts (Urine) in their panels. This biomarker has limited availability.
What category does Hyaline Casts (Urine) fall under?
Hyaline Casts (Urine) is categorized under Urinalysis. This category includes biomarkers that help assess related aspects of health and wellness.
Medical Disclaimer
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.
Last reviewed:2026-04-12