Protein Total 24 Hour Urine With Creatinine Biomarker Testing
It measures how much protein you lose in urine over 24 hours, adjusted with creatinine, using convenient ordering and Quest lab access via Vitals Vault.
With Vitals Vault, you have access to a comprehensive range of biomarker tests.
This test estimates how much protein your kidneys are letting leak into your urine over a full day. Because urine concentration changes with hydration, the report also includes urine creatinine to help interpret whether the collection looks complete and to support ratio-based interpretation.
A 24-hour urine collection is usually ordered when a single “spot” urine test is not enough, when results are borderline, or when your clinician needs a more accurate daily total to guide next steps.
Your number does not diagnose a specific kidney condition by itself, but it can be an important sign that your kidneys are under stress and that follow-up testing (and sometimes treatment) is worth discussing.
Do I need a Protein Total 24 Hour Urine With Creatinine test?
You might consider this test if you have a prior urine test showing protein (proteinuria), especially if it was more than “trace,” if it keeps showing up on repeat checks, or if your clinician wants to confirm how much protein you are losing in a day.
It is also commonly used when you have swelling in your legs or around your eyes, foamy urine, high blood pressure, diabetes, known kidney disease, or an unexplained drop in estimated kidney function (eGFR) on bloodwork. In pregnancy, significant protein in urine can be part of evaluating hypertensive disorders, but your clinician will decide which test is appropriate for your situation.
A 24-hour collection can be helpful when a spot urine protein-to-creatinine ratio (UPCR) or albumin-to-creatinine ratio (ACR) seems inconsistent with your symptoms, when you are monitoring response to treatment, or when accurate quantification matters for referral decisions.
Testing is most useful when you review the result alongside your history, blood pressure, medications, and kidney function labs. It supports clinician-directed care rather than self-diagnosis.
This is a CLIA-laboratory test; results should be interpreted in clinical context and are not a standalone diagnosis.
Lab testing
Ready to order a 24-hour urine protein test through Vitals Vault?
Schedule online, results typically within about a week
Clear reporting and optional clinician context
HSA/FSA eligible where applicable
Get this test with Vitals Vault
Vitals Vault lets you order a Protein Total 24 Hour Urine With Creatinine test directly and complete the lab portion through the Quest network. After you order, you will receive collection guidance so you know how to do a 24-hour urine correctly, since collection errors are one of the most common reasons results are confusing.
When your results are ready, you can use PocketMD to ask questions in plain language, such as whether your level is mild, moderate, or in a range that typically warrants faster follow-up. PocketMD can also help you understand what companion tests are often used to pinpoint the cause.
If you are trending kidney markers over time, Vitals Vault makes it easy to reorder the same test for consistency and to keep your results organized for your clinician.
- Order online and use the Quest lab network for specimen drop-off
- PocketMD helps you interpret results and plan follow-up questions
- Easy re-testing to track trends when your clinician recommends monitoring
Key benefits of Protein Total 24 Hour Urine With Creatinine testing
- Quantifies total daily protein loss, which can be more accurate than a single spot urine sample.
- Helps confirm and stage proteinuria when a dipstick or routine urinalysis is positive.
- Supports kidney risk assessment alongside eGFR, blood pressure, and diabetes control.
- Guides urgency of follow-up when protein levels approach nephrotic-range amounts.
- Provides urine creatinine data that helps judge whether the 24-hour collection was likely complete.
- Helps monitor response to treatment (for example, blood pressure or kidney-protective therapy) over time.
- Creates a clear baseline you can review with PocketMD and share with your clinician for next-step planning.
What is Protein Total 24 Hour Urine With Creatinine?
Protein Total 24 Hour Urine measures the total amount of protein excreted in your urine over a full 24-hour period. Healthy kidneys keep most protein in your bloodstream, so higher urine protein often reflects increased “leakiness” of the kidney’s filtering units (glomeruli), reduced reabsorption in the kidney tubules, or protein from inflammation or bleeding in the urinary tract.
The “with creatinine” part means the lab also measures urine creatinine and typically reports the total creatinine excreted over 24 hours (and/or creatinine concentration). Creatinine is produced by your muscles at a fairly steady rate, so urine creatinine helps your clinician judge whether the collection volume and timing were likely adequate. In some settings, creatinine is also used to calculate a protein-to-creatinine ratio from the collected sample.
This test is different from urine albumin testing. Albumin is one specific protein and is often the earliest marker of diabetic kidney disease. Total protein includes albumin plus other proteins, so it can better capture non-albumin protein losses in certain kidney conditions.
Why a 24-hour collection is used
Urine concentration changes throughout the day depending on hydration, exercise, and timing. Collecting all urine for 24 hours smooths out those swings and estimates a daily total, which can be important for confirming severity and tracking change over time.
What “proteinuria” can signal
Protein in urine can be temporary (for example, after heavy exercise, fever, dehydration, or a urinary tract infection), or it can reflect ongoing kidney disease. The amount matters: higher levels are more strongly linked with kidney damage risk and cardiovascular risk, especially when persistent.
What do my Protein Total 24 Hour Urine With Creatinine results mean?
Low (or none detected) total urine protein
A low result generally means your kidneys are not leaking significant protein over the day. If you previously had protein on a dipstick, a low 24-hour total can suggest the earlier finding was temporary or related to collection timing, hydration, exercise, or an acute illness. Your clinician may still recommend repeat testing if you have diabetes, high blood pressure, or other kidney risk factors.
In-range total urine protein
An in-range result suggests protein loss is within what the lab considers normal for a 24-hour period. This is reassuring, but it does not replace other kidney checks such as blood creatinine/eGFR, blood pressure, and urine albumin (ACR) when those are clinically indicated. If symptoms or risk factors persist, your clinician may use this as a baseline and recheck later.
High total urine protein (proteinuria)
A high result means you are losing more protein than expected in a day. Mild to moderate elevations can occur with infections, uncontrolled blood pressure, diabetes, or early kidney disease, while larger elevations raise concern for more significant glomerular disease and may prompt faster evaluation. Your clinician will interpret the amount together with urine creatinine (collection adequacy), urinalysis findings (blood or casts), and kidney function blood tests.
Factors that influence your result
Collection quality matters: missing urine during the 24-hour window can underestimate protein, while including urine outside the window can overestimate it. Recent strenuous exercise, fever, dehydration, urinary tract infection, and menstruation can increase measured urine protein. Certain medications and supplements can affect kidney handling of protein or interfere with testing, so it helps to list everything you take. Pregnancy and long-standing diabetes or hypertension can change how results are interpreted, so your personal context is essential.
What’s included
- Creatinine, 24 Hour Urine
- Protein/Creatinine Ratio
- Protein, Total, 24 Hr Ur
Frequently Asked Questions
How do I do a 24-hour urine collection correctly?
You will pick a start time, empty your bladder and do not save that first urine, then collect every urine for the next 24 hours into the provided container(s). At the exact end time the next day, you will collect one final urine. Keep the container refrigerated or on ice if instructed, and return it promptly, because temperature and timing can affect accuracy.
Do I need to fast for a 24-hour urine protein test?
Fasting is usually not required for a 24-hour urine protein collection. However, your clinician or the lab may give specific instructions based on other tests ordered the same day, so follow the collection kit directions and any clinician guidance.
What is a normal 24-hour urine protein level?
“Normal” depends on the lab’s reference range and reporting units, but many labs consider total protein under about 150 mg per 24 hours to be within range. Your report’s reference interval is the best anchor, and your clinician may use different cutoffs depending on pregnancy, diabetes, or known kidney disease.
What is the difference between total urine protein and microalbumin (ACR)?
Albumin is one specific protein, and the urine albumin-to-creatinine ratio (ACR) is often used to detect early kidney damage, especially in diabetes and hypertension. Total urine protein measures all proteins, not just albumin, and can be more informative when non-albumin proteins are elevated. In many workups, clinicians use both, plus a urinalysis.
Can exercise or a UTI make urine protein high?
Yes. Strenuous exercise, fever, dehydration, and urinary tract infections can cause temporary increases in urine protein. If your result is high and you had one of these factors during collection, your clinician may recommend repeating the test after recovery or using a spot ratio test for confirmation.
How often should I repeat this test if it is high?
Retest timing depends on how high the result is and what else is going on (blood pressure, diabetes control, eGFR trend, symptoms). Some people repeat within weeks to confirm persistence after a reversible trigger, while others monitor every few months when adjusting treatment. Your clinician can tailor the interval, and trending the same method over time is often the most useful.
What follow-up tests are commonly ordered if my 24-hour urine protein is elevated?
Common next steps include a urinalysis with microscopy, urine albumin (ACR) or spot protein-to-creatinine ratio (UPCR), blood creatinine with eGFR, electrolytes, and sometimes tests for diabetes control and autoimmune or inflammatory causes depending on your history. Imaging or referral to nephrology may be considered for higher levels or persistent findings.