When you go to see a doctor, they sometimes ask you to give them a urine sample, right? You might be wondering why they ask. One of the main reasons is to see how much protein is in your urine. In fact, we all have a very small amount of protein in our urine. That's normal. However, if this protein level is much higher than normal – we call it proteinuria – it could mean that your kidneys are not working properly. So, this is something to be concerned about.
What exactly is a urine protein test?
Simply put, this measures the amount of protein in your urine. Our kidneys act like a filter. One of the main functions of the kidneys is to filter waste products from the blood and excrete them as urine. Healthy kidneys usually do not filter out large particles like protein. However, if there is any damage to the kidneys, the holes in this filter may become larger. This is when protein accumulates in the urine. So, having too much protein in the urine is a sign that something is wrong with the kidneys.
Other medical names that doctors use for this urine protein test are `(Urine Albumin-to-Creatinine Ratio - UACR)` and `(Protein-to-Creatinine Ratio)`. You may see these names on your reports.
Why would a doctor recommend this urine protein test?
There may be several reasons why a doctor might ask you to do this test.
- Check to see if you have a urinary tract infection (UTI) . A UTI can sometimes cause protein in the urine.
- This screening helps to identify early the risk of developing kidney disease in people with certain diseases, for example, someone with diabetes mellitus . Diabetes is a major disease that can affect the kidneys.
- This test is also important to identify a dangerous condition called preeclampsia that can occur during pregnancy.
- If you already have kidney disease, this also helps to see if the treatments you are receiving are having successful results.
Sometimes your doctor will ask you to provide a one-time urine sample. Other times, they may ask you to collect all of your urine over a 24-hour period. You can also get at-home protein urine tests from pharmacies.
How do we prepare before this test?
There are several things that can affect the results of this urine protein test, so it's good to be aware of this.
- Urinary tract infection (UTI) : If you have a UTI, it may change the report.
- Dehydration : Dehydration can affect results.
- A special liquid used for some scans (`Contrast dye`) : This `contrast dye` used for things like CT scans can also have an effect.
- Excessive exercise : If you take the test immediately after exercising heavily, the results may be different.
- Some medications : Some medications you take can also affect this.
In addition, if you have blood in your urine (for example, kidney stones, or after prostate surgery in men), that can also affect the results.
Therefore, it is best to talk to your doctor before the test and ask if you need to do any special preparations. Unless your doctor specifically tells you to, you usually do not need to fast before this test.
What happens during the test? Exactly how the sample is given
This is actually very simple. All you have to do is give some urine into a clean bottle (specimen container). This should be done in a private place, where there is a toilet and a sink. It is not painful and does not cause any harm to the body.
A doctor or nurse will give you these things:
- A bottle of clean, sterilized urine.
- A few antimicrobial wipes.
Then you need to do it like this:
1. First , wash your hands thoroughly with soap .
2. Carefully open the cap of the urine bottle.
3. Now, use that antiseptic wipe to thoroughly clean your genital area, especially the skin around the urethra . This is very important, otherwise germs on your skin may mix with the urine and cause an incorrect report.
4. First, empty some urine into the toilet (for a few seconds).
5. Then stop urinating, place the clean bottle back on its neck, and start urinating into the bottle. This is called collecting a midstream urine sample .
6. Collect enough urine to fill the bottle, usually about 2 ounces (60 ml). Often, there is a mark on the bottle to indicate how much to fill.
7. Then stop urinating again and remove the bottle.
8. Empty the remaining urine into the toilet.
9. Close the bottle tightly and give it to the doctor or nurse.
Very simple, right? Only if we follow these steps exactly will we be able to see the most accurate results.
What if I collect a urine sample at home? (Like a 24-hour sample)
Sometimes your doctor will tell you to collect your urine at home. If that's the case, your doctor will give you the bottles and swabs you need. All you have to do is collect the sample cleanly, as mentioned above, every time you urinate. The most important thing is to keep each sample in the refrigerator until you go to the doctor and give it to him.
What happens after the test?
The urine sample you provide will be sent to a laboratory for testing. There, a technician in the lab will test your urine. They will use a special strip (`dipstick`). The color of this strip will tell you how much protein is in your urine.
What does my test report say? Let's understand the results
Normally, the amount of protein excreted in the urine of a healthy person should be less than 150 milligrams per day. If there is more than that, it means that you have proteinuria (which means there is too much protein in the urine). However, these values may vary slightly from one lab to another. Therefore, you should compare them with the normal values in your report.
This urine protein test alone cannot tell you exactly what disease you have. However, it can help your doctor point you in the right direction . There can be many reasons for high protein in your urine. Some of them are temporary, meaning they go away in a few days. For example:
- Dehydration
- Low blood pressure (Hypotension)
- Inflammation in the body
- Kidney stones
However, sometimes high protein in the urine can also be a sign of conditions that require more attention . These include:
- Chronic kidney disease
- Risk factors for cardiovascular disease
- Some autoimmune diseases (i.e. diseases in which the immune system attacks the body's own cells) - for example , lupus and Goodpasture's syndrome .
- Congestive heart failure
- Kidney cancer
- Multiple myeloma (a cancer of the bone marrow)
Your doctor will explain to you in detail what the results of your report actually mean and whether you need any treatment.
How long does it take to receive the report?
The report usually comes back in two to three days. It can vary depending on the lab's workload. They send the report to your doctor, who then discusses it with you.
What to do if there are abnormalities in the report?
If your report shows that your urine protein levels are high, your doctor may perform a physical exam or order additional lab tests to determine if you have any underlying health conditions. Once the diagnosis is made, your doctor will discuss the appropriate treatment options for you.
If you get an abnormal result from a home test kit, don't panic right away . There could be many reasons for this, not all of which are dangerous. Your doctor can explain it to you in more detail and help you understand the results.
What time should I call the doctor?
If you develop any new symptoms, or if your symptoms seem to be getting worse, be sure to let your doctor know . Your doctor can then decide if further testing is needed.
Be aware of symptoms like these:
- Swelling (Edema) - If areas such as the face, stomach, ankles, and legs swell.
- If the urine is foamy .
- Difficulty breathing (Dyspnea) .
- If you feel tired all the time (Fatigue) .
- If nausea and vomiting go away.
- Muscle cramps , especially at night.
- If you urinate more than usual .
- If you feel swelling around your eyes .
- If you have an appetite .
If you have one or more of these, it is very important to talk to your doctor about it.
What is the main cause of increased protein in the urine?
Proteinuria is often caused by kidney disease . However, as we've discussed before, it can also be caused by many other things, such as dehydration, urinary tract infections (UTIs), and excessive exercise.
Does menstruation affect this test?
Some urine tests can be affected by menstruation. However, studies have shown that if the sample is collected properly, menstruation does not significantly affect the results of a urine protein test . However, if you have any concerns, it is best to talk to your doctor for advice.
Can you check protein in urine at home?
Yes, you can. There are ``at-home test kits`` available from pharmacies that you can do at home without a prescription. If you follow the instructions exactly, you can get accurate results. You may be able to get these kits cheaper through your insurance plan. It is best to ask your doctor which test kit is right for you.
So, what are the things we need to remember from this?
Elevated protein levels in your urine can be a sign of an underlying medical condition, such as kidney disease, diabetes mellitus, or urinary tract infection (UTI).
A urine protein test is a simple, noninvasive way to find out how well your kidneys are working. It can also provide your doctor with valuable information to help diagnose your condition and decide on the appropriate treatment.
Therefore, if a doctor asks you to have this test, it is very important for your health to do it properly and not skip it. If you have any questions or doubts, don't be afraid to discuss them with your doctor.
` Urine protein, kidney disease, proteinuria, urine test, health tests, symptoms, medical advice
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