How many glasses of water are you drinking a day?​

Daily recommended amount of water intake is 6 to 8 glasses a day.
​Kidney Health & Blood Pressure Basics:
  • Check your blood pressure at home and write down your daily readings
  • Yearly physicals are the only way to ensure accurate treatment for Hypertension 
  • Medication doses may change depending upon your changes in your physical health and health care needs
  • Medication monitoring should be supervised by a medical professional
  • Discontinuing a hypertension medication because you feel better is never a wise decision
  • Hypertension is a silent killer, symptoms are not always noticeable​

KIDNEY FUNCTION TEST

Kidney function tests are simple procedures that use blood or urine to help identify kidney issues. A few different kidney function tests investigate various aspects of kidney function. A kidney function test may check if the kidneys filter waste products too slowly. Another test may see if the kidneys leak proteins into the urine. A doctor who thinks a person may have a kidney function problem may order a kidney function test, but regular testing can be helpful for all adults. As the National Kidney Foundation notes, 1 in 3 adults in the United States is at risk for kidney disease, and many people with early forms of the disease have no symptoms. Diagnosing and treating the condition early is essential before it can permanently damage. A doctor may recommend kidney function tests to help diagnose kidney conditions. Kidney function tests target blood or urine and measure different aspects of kidney function.
​Often, doctors will order more than one test at a time to get a broader picture of the overall kidney function. The kidneys play an essential role in keeping the body healthy. Their main job is to filter waste materials from the blood and send them out of the body in the urine. Kidney damage can prevent the kidneys from filtering the waste properly, leaving it to remain in the body and causing dangerous symptoms. Regular testing may help identify issues such as kidney disease in its very early stages, making it possible to halt the progress of the disease. Doctors may order other tests to get more information about the kidney, such as imaging tests or a biopsy.

FUNCTION TEST TYPES​

​Urine Tests:

 Urine Tests may require a small urine sample or all of the urine a person produces in 24 hours.

Urinalysis:

A comprehensive urine test helps doctors identify issues or determine tests. Urinalysis may help identify many undesirable particles in the urine. If the test comes back positive for one or more of these particles (blood, pus, bacteria, sugar, protein), it may indicate an underlying issue, such as:
  • kidney or bladder infections
  • kidney disease
  • kidney stones
  • diabetes

​Blood Tests

A doctor or nurse will insert a needle into a person's arm to draw a blood sample for blood tests. The person may need to fast or do the test first thing in the morning.  
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Microalbuminuria or albumin-to-creatine ratio tests

​These two tests require a small urine sample. They both help identify levels of albumin in the urine. Albumin is an essential protein in the blood. If the kidneys filter too much albumin out in the urine, it may be a sign that they are not doing their job correctly. A urine albumin result of 30 milligrams per gram (mg/g) or less is typical. Anything higher than this may be a sign of kidney disease. Microalbuminuria is a much more sensitive test, detecting even tiny amounts of protein in the urine. People at higher risk for kidney disease may need to take a microalbuminuria test even if other urine protein tests return negative.

Creatine Clearance Test.

Creatine is a waste product in the body that occurs naturally from daily muscle use. A creatine clearance test is both a blood and urine test. It involves collecting all the urine a person creates in 24 hours and taking a small blood sample. Doctors compare the amount of creatine in the urine sample to the levels of creatine in the blood. This comparison shows how much waste the kidneys filter out, which may indicate their overall health.
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Serum Creatine Test

​High serum creatine levels are a potential symptom of kidney disease. Serum creatine levels that are too high may indicate that the kidneys are having trouble doing their job. Doctors will also order a serum creatine test as a creatine clearance test. The National Kidney Foundation note that serum creatine levels above 1.2 for women or 1.4 for men may be an early sign that the kidneys are not functioning as they should. These numbers may rise further as kidney disease progresses. Doctors may also calculate a person's glomerular filtration rate (GFR) using this test to confirm their diagnosis or order more tests to check their results. The GFR test takes the results of a serum creatine test and adjusts them for several other factors, such as age, gender, and race. The typical GFR value is 60 or above. A GFR around 60 or below is a sign of kidney problems.

Blood Urea Nitrogen Test

​The blood urea nitrogen (BUN) test checks for other waste products in the blood, such as urea nitrogen. Urea nitrogen occurs as proteins from food break down, and elevated levels may indicate that the kidney is not effectively filtering these waste products. A typical BUN level falls between 7 and 20 milligrams per deciliter. Higher values could be a sign of an underlying condition affecting the kidneys. With that said, many other things can affect BUN levels, such as medications or antibiotics. A diet that is very high in protein diet may also affect levels. Doctors will typically compare these results to the results of a creatine test to better understand how well the kidney is filtering this waste;
Imaging Tests. Imaging tests may help doctors identify any physical changes to the kidneys, such as injuries or kidney stones.
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​Ultrasounds. Doctors may order an ultrasound to look for changes in the shape or position of the kidneys. They may also request an ultrasound to check for tumors or blockages, for example, kidney stones. Ultrasound tests use harmless sound waves to take pictures.
CT Scans. A CT Scan uses a series of X-ray images to create a more in-depth, 3D picture of the kidneys. It may help identify any structural changes or deformations in a kidney. Sometimes the scan requires injecting the person with a dye, which can be problematic for people who may have kidney disease.
Biopsies. In some cases, doctors may want to perform a kidney biopsy. A process involves inserting a small needle into the kidney to remove kidney tissue. The doctor will send the tissue to a lab for testing. Doctors may order a biopsy when they need to identify a specific disease and see how well it may respond to treatment. They may also use a biopsy to determine the progression of kidney disease.

​RESULTS

Positive results on multiple tests are signs that there is an underlying issue in the kidneys. The results of each test help doctors get a better picture of a person's overall kidney health. The tests can also identify markers of kidney disease and justify ordering more tests. Once they have determined an issue in the kidneys, doctors will work to diagnose the problem and develop a treatment plan thoroughly. Many possible underlying conditions can lead to the loss of kidney function. A thorough diagnosis is key to finding the correct treatment in each case.
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​TAKEAWAY

Kidney function tests are a vital part of diagnosing and treating disorders that affect the kidneys. Even if a person does not yet have symptoms, some people may need regular testing. The National Institute of Diabetes and Digestive and Kidney Diseases recommends that people at higher risk for kidney issues receive standard kidney function tests. People at increased risk include those with:
  • high blood pressure
  • heart disease
  • high cholesterol
  • diabetes
  • obesity
  • a family history of kidney disease or kidney failure
Regular kidney function tests can help identify kidney problems early and when the outlook is best. By following a treatment plan, people can help prevent the progression of the condition. Working directly with a doctor is the best way to monitor and manage any signs of kidney damage or underlying conditions.

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