Urine Protein
Dipstick urine protein detects mainly albumin and is an early warning of kidney damage, especially in diabetes and hypertension. Persistent proteinuria is a strong risk factor for progressive kidney disease and cardiovascular events. Transient proteinuria can also occur with fever, exercise, or dehydration, so confirmed findings on repeat testing guide further workup and treatment.
Optimal range: who says what
No institution or named practitioner we track states an optimal target for Urine Protein. How we verify ranges.
- General guidance, no named sourceNegativeExpected in health; persistent protein warrants kidney follow-up
- Lab reference intervalNegativeWhat a lab report flags against. A lab interval is not an optimal target.
4 providers include this
Urinalysis
Why Urine Protein matters
Persistent protein in urine (proteinuria) may indicate kidney damage, especially in diabetes or hypertension. It's an early warning sign of kidney disease and predictor of cardiovascular risk.
Reading a Urine Protein result
The dipstick detects protein, including albumin, and reports it semi-quantitatively. MedlinePlus gives normal values of 0 to 14 mg/dL in a random sample. The dipstick can miss small amounts of albumin that a urine albumin (microalbumin) test picks up. Persistent proteinuria is a marker of kidney damage, and it is used with eGFR to classify chronic kidney disease (StatPearls).
Common causes of a high result
- Kidney damage, including diabetic kidney disease
- Heart failure
- Dehydration
- Multiple myeloma
- Preeclampsia in pregnancy
- A urinary tract infection or bladder tumor
Caveat: Strenuous exercise, dehydration, contrast dye in the previous 3 days, vaginal fluid in the sample and a urinary tract infection can all affect the result (MedlinePlus).
What to check next
- A repeat test, since exercise, dehydration or infection can cause a temporary positive
- The urine albumin-to-creatinine ratio
- Serum creatinine and eGFR, which ARUP lists with uACR as the core tests for chronic kidney disease
Sources: MedlinePlus: Urine protein dipstick test; StatPearls: Proteinuria (Haider, Aslam); ARUP Consult: Acute kidney injury and CKD. Checked against these sources 2026-09-23. General information, not medical advice; your lab's reference interval and your clinician's reading take precedence.
Which Providers Test Urine Protein?
Empirical Health is both the cheapest ($190/year) and the most comprehensive (100+ biomarkers) panel that includes Urine Protein.
4 panels that include it, cheapest first
| Provider | Annual Cost | Total Biomarkers | $/Biomarker |
|---|---|---|---|
| $190 | 100+ | $1.90 | |
| $297 | 100+ | $2.97 | |
| $365 | 100+ | $3.65 | |
| $499 | 100+ | $4.99 |
$/Biomarker is annual cost divided by the panel's advertised biomarker count, not the price of this one test. We track 23 blood test providers (32 plans); 21 of those plans are itemized marker by marker. Compare all of them.
17 itemized panels do not include Urine Protein
Superpower · WHOOP Advanced Labs · Labcorp OnDemand · Life Extension Elite · Everlywell · InsideTracker · Function Health · Marek Health Base · Marek Health Comprehensive · Marek Health Complete · Marek Health Executive · Oura Health Panels · SiPhox Health · Hims Labs · Healthspan · Vitality Blueprint Standard · Vitality Blueprint Elite
11 providers not itemized in our matrix
We have not itemized these marker by marker (some sell tests one at a time), so this page cannot say whether they offer Urine Protein. Check with them directly.
Life Extension Standard · Quest Health · Ultrahuman Blood Vision · Lifeforce · Hundred Health · Personalabs · Walk-In Lab · HealthLabs · WHOOP Specialized Panels · Marek Health Essential · Vitality Blueprint Upload
Experts discussing Urine Protein
Podcast episodes where clinicians and researchers cover this marker in depth. Curated by hand; an episode is listed only when the marker is a substantial topic, not a passing mention.
Frequently Asked Questions
What is the optimal range for Urine Protein?
No institution or named practitioner we track states an optimal target for Urine Protein. General guidance without a named source: Negative (Expected in health; persistent protein warrants kidney follow-up). Lab reference interval: Negative. That is what a lab report flags against, not an optimal target.
Which blood test providers include Urine Protein?
4 of the 21 blood testing panels we itemize marker by marker include Urine Protein in their panels. This biomarker has limited availability.
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 Aug 26, 2026 · First published Nov 30, 2025