The functioning of the kidneys is diagnosed with a renal function test. It aids in the diagnosis of renal injury, infection, or inflammation. To assess the condition of the kidneys, the test evaluates the following in the blood: calcium, uric acid, creatinine, BUN, and the BUN/Creatinine Ratio. Urine is the result of waste items being filtered out of the blood by the kidneys, which are an essential organ. They also rid the body of extra water. The kidneys can't work correctly if they are damaged in any way. Diseases affecting the kidneys can cause the body to accumulate toxic waste and too much water, which can inflame the body. To identify any kidney disease early on, the doctor orders a renal function test. A renal function test must also be performed regularly to assess for kidney impairment in those with diabetes, hypertension, heart disease, and a family history of kidney disease. Diabetes, heart disease, and renal disease are a trinity that predisposes one to the other frequently. People with diabetes, hypertension, or any kind of heart condition, for instance, are more likely to develop kidney disease. Other Names of Renal Function Test Kidney function panel Renal function panel Kidney function test Renal function test KFT RFT Who is this recommended for and what does the test measure or detect? Multiple components that are useful in understanding the condition of the kidneys are measured by renal function tests. When there are indications of renal disease or injury, the doctor will typically recommend the RFT test procedure. Acute renal failure (ARF), chronic kidney disease (CKD), and glomerulonephritis are the most frequent kidney ailments. The common signs and symptoms of loss of kidney function are: Changes in urine like appearance, quantity, and frequency. Swelling in the body due to an unknown cause. Swelling is usually seen on the face and feet. Muscle pain and cramps. Unexplained weight gain or weight loss. Nausea or vomiting. In addition to these symptoms, those with high blood pressure, diabetes, and heart conditions including coronary artery disease may also consider having a renal function test. Additionally, if there is a family history of renal illness, the doctor may order this test as a regular evaluation blood test. Heart disease, diabetes, and kidney disease are three illnesses that are strongly related to one another. It is possible for one illness to exacerbate another and for the deterioration of one to negatively impact the other. Renal function testing is therefore recommended for individuals with diabetes and heart disease as a part of their regular blood work. Globally, the prevalence of Chronic Kidney Disease (CKD) is rising quickly. End-stage renal disease is a complication of chronic kidney disease (CKD) (ESRD). Compared to women, men are more likely to develop ESRD after CKD.

Acute kidney disease, Chronic kidney disease, Diabetic nephropathy, Renal failure

Uric acid - 2.5- 6.2 mg/dL BUN - 7-17 mg/dL Creatinine - 0.66 - 1.25 mg/dL BUN: Creatinine ratio - 9:1-23:1 Calcium - 8.4 – 10.2 mg/dL . The normal values, parameters, and reference ranges of the tests may vary from lab to lab. Please refer to the ranges mentioned in the report and consult a doctor to understand the interpretation of lab reports.

There may be an underlying renal disease condition if the results of the RFT tests are either greater or lower than normal. Each test's findings give the physician a clearer picture of the kidneys' general condition. A renal disease may not be confirmed if an aberrant RFT value is found in only one renal function test component. The patient's medical history and current state of health should be compared with the RFT test findings. The eGFR value is crucial for comprehending how the kidneys operate. A value of above 60 but less than 90 for eGFR indicates mild renal disease. However, if the eGFR is less than 60, renal damage may be present. A kidney transplant or dialysis may be necessary if the eGFR is less than 15, which indicates a high risk of renal failure. The doctor may prescribe additional tests to confirm a diagnosis, depending on the findings of the current examination and the patient's health. Kidney function loss can result from a variety of illnesses. Before determining a diagnosis and initiating a treatment plan, the physician will do extensive testing.

A set of tests known as renal function tests uses a blood sample to evaluate kidney function. Test Preparation It is not necessary to fast before supplying a blood sample for a renal function test to check for the various components. Before the test, let your doctor know about all current prescriptions, vitamins, and supplements. Test inclusions: What parameters are included? The renal function test measures a multitude of parameters. The components of renal function tests differ based on the laboratories and the prescriptions. Some of the components measured in a renal function test are: Serum creatinine – Creatinine is a waste product formed due to the normal activity of the muscles in the body. An increased creatinine level may mean that the kidneys are not functioning optimally. Blood Urea Nitrogen (BUN) – It measures the amount of urea in the blood. Urea is formed as a result of the breakdown of proteins in the body. It is also referred to as urea nitrogen, a waste product excreted by the kidneys. High levels indicate kidney damage. Calcium - A mineral vital for the bones, teeth, muscles, heart, and nerves. Both low and high levels indicate health conditions that require attention. BUN (Blood Urea Nitrogen): Creatinine ratio – BUN and creatinine are waste products of the body. This test helps differentiate the cause of abnormal levels due to kidney damage or problems in another part of the body. Estimated Glomerular Filtration Rate (eGFR) – Glomerular Filtration Rate (GFR) is an evaluation of kidney function. It measures the quantity of blood filtered by the kidney in a minute. Urea/Creatinine Ratio Urea (Calculated) Uric Acid Other measurements that may be included in a renal function test are: Total protein – Apart from albumin, there are various other proteins in the blood. The total protein is a test that measures the overall amount of protein in the blood. Sodium – An electrolyte that maintains fluid balance in the body. Low sodium levels indicate a fluid imbalance and suggest kidney-related disease. Potassium – Like sodium, it is also an electrolyte that maintains healthy fluid balance and acid-base balance in the body. Chloride - An electrolyte that works in combination with other electrolytes to maintain fluid balance in the body. Phosphorus – Mineral is present in bones, teeth, and muscles. Phosphorus is excreted by the kidneys. A high level of phosphorus can be due to kidney disease. Serum albumin – Albumin is a type of protein produced in the liver. Healthy kidneys do not let albumin pass in the urine. Less albumin in the urine means the kidneys are functioning well. Glucose – It is also known as blood sugar. Excess sugar is a common finding in diabetes. Persistent high levels of glucose can damage kidney cells over some time.