Kidney Function Test | Life Line Screening

Kidney Function Test

Chronic Kidney Disease (CKD) is when damaged kidneys cannot filter blood effectively. Waste builds up in the body, which can lead to health problems like heart disease, poor nutritional health, stroke, anemia, nerve damage and bone disease.


Schedule this Screening
*Screening availability may be limited by location.

Who is this screening for?

  • People with diabetes and pre-diabetes as well as those with high blood pressure or pre-hypertension (borderline high blood pressure)
  • Age 60+
  • A family history of kidney disease
  • Certain ethnic groups including African Americans, Hispanics, Asians, American Indians and Pacific Islanders


50+ with risk factors


The National Kidney Disease Education Program* suggests the following screening guidelines:
  • For people with diabetes,once per year
  • For people newly diagnosed with high blood pressure; if hypertension is properly controlled by medication and in normal range, every 3 years
  • For people with a family history of kidney failure, every 3 years as long as test results remain normal

Risk Factors for Chronic Kidney Disease

  • Age 60+
  • Family history of Kidney Disease
  • Race and ethnicity (see list under who is this screening for?)
  • Diabetes
  • High Blood Pressure
  • Hereditary factors such as polycystic kidney disease
  • Abnormally elevated creatinine levels or decreasing glomerular filtration rates (GFR)

Chronic Kidney Disease Screening Details

A simple finger-stick blood draw is tested to measure the creatinine level in the blood, which is used to estimate the Glomerular Filtration Rate of the kidneys, or eGFR. The eGFR rate can indicate how well the kidneys are functioning to clear waste from the blood.

About Chronic Kidney Disease

Chronic Kidney Disease (CKD) will often develop without any symptoms, and may not be detected until kidney function is significantly impaired. Detected early, CKD can be slowed through medication or lifestyle changes.

Warning Signs of Chronic Kidney Disease

Symptoms of chronic kidney disease may not appear until late in the course of the disease, but there can be warning signs:
  • Difficulty concentrating and sleeping
  • Poor appetite, nausea or vomiting
  • Fatigue/loss of energy
  • Dry, Itchy skin
  • High Blood pressure
  • Blood and/or protein in the urine
  • Decreasing glomerular filtration rate (GFR). GFR is the best measure of kidney function
  • Frequent urination, especially at night and accompanied by pain or difficulty urinating
  • Puffiness around the eyes, especially in the morning; swelling of hands and feet

Chronic Kidney Disease FAQ

  • How common is Chronic Kidney Disease?
    14% of people in the U.S. have CKD. Half of people with CKD also have diabetes and/or cardiovascular disease.*
  • What causes CKD?
    High blood pressure and diabetes are the main causes of CKD.*
  • Is kidney disease life-threatening?
    Each year, kidney disease kills more people than breast or prostate cancer.*
*National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 2017

*Most of the time, screening results are normal, providing the customer with peace of mind. However, in some cases, such as the real life stories here, potential health issues are identified enabling the person to do something about it before it is too late.