Your kidneys are responsible for filtering your blood and removing waste products through your urine. They also manage water retention and control ion concentrations and the acid balance in your blood.
Symptoms of acute kidney failure may include:
- Chronic fatigue
- Urinating less frequently or producing a reduced volume of urine
- Irregular heartbeat
- Shortness of breath
- Fluid retention
- Swelling in the legs, ankles, and feet
- Irregular heartbeat
- Chest pain
This test will indicate how your kidneys are performing by measuring levels of urea, creatinine, and eGFR. High levels of urea, creatinine and a low eGFR can indicate acute or chronic kidney disease.
You should take the test if:
- you have a high protein diet
- you have used or are using performance enhancing drugs
- you are taking anti-inflammatory medication
- you suffer from high blood pressure
- you suffer from diabetes
- you have suffered an acute injury
- you have persistent urinary tract infections
- you have a kidney disease or a family history of one
- you have kidney stones or a family history of them
The test must be taken fasted, before 9 a.m and returned on the same day.
Urea is a waste product formed from the breakdown of proteins and is passed out in your urine. A high level of urea ('uremia') indicates that the kidneys may not function optimally or that you are dehydrated.
Creatinine is a waste product made by your muscles and dietary protein. Creatinine passes into the bloodstream and is usually passed out in urine. A high blood level of creatinine indicates that the kidneys may not be working properly.
eGFR (estimated glomerular filtration rate)
eGFR (estimated glomerular filtration rate) is a calculation which determines how well your kidneys are filtering blood.
How to collect your sample
Watch our instructional video to see how easy it is to collect your sample.
How it works
Collect Your Sample
Activate your test and collect your sample in the morning. Return your sample on the same day, using the prepaid shipping label provided.
Review Accurate Results
Once your sample arrives in the laboratory, confidential results will be available from your secure online account within 2 to 5 days.
Get Medical Support
Our dedicated team of physicians and nurses are available 24/7 and will call you to explain your results.
Still have questions?
Here are some questions we usually get about LetsGetChecked. If you would like yours answered, please contact us.
Activating the test connects you to the unique alphanumeric barcode within your LetsGetChecked test kit. The laboratory cannot process your sample if the test kit is not activated and linked to you.
LetsGetChecked has a team of physicians who will review your order and results. Our nursing team is on standby throughout the testing process and, if you test positive, you will receive a call to discuss your results and treatment options.
Please ensure that the sample is collected before 9am and returned immediately using the carrier method provided within the test kit. Each test includes a prepaid shipping envelope to return your samples to the laboratory.
Please do not collect or return samples on a Friday, Saturday or Sunday.
Keeping your data secure is important to us. All data is complete anonymized to ensure that your privacy is maintained throughout the process. We will not share your information with any third party.All samples are disposed of following analysis.
Your samples are processed in the same labs used by primary care providers, hospitals and government schemes.
LetsGetChecked laboratories are CLIA approved and CAP-accredited, which are the highest levels of accreditation.
Tests kits are manufactured within our ISO 13485 accredited facility, the highest level of accreditation for medical devices.