We will post out to you a finger prick sample pack; it will have all you need to take your sample including instructions of how to take the sample and an envelope to return it to the Lab.
If you are nervous or unsure about anything please contact us and we will do our best to help.
We always recommend taking your sample in the morning and getting to the post office the same day.
Urea is a waste product it is produced as your body digests protein and is carried by the blood to your kidneys, which filter the urea out of the blood and into urine.
This test looks at how well your kidneys are functioning.
High urea levels suggest poor kidney function. This may be due to acute or chronic kidney disease. However, there are many things besides kidney disease that can affect urea levels such as stress, recent heart attack or severe burns; bleeding from the gastrointestinal tract; conditions that cause obstruction of urine flow or dehydration.
Low urea levels are not common and are not usually a cause for concern. They can be with low protein diets, excess hydration malnutrition or liver failure. Low urea levels are also seen in normal pregnancy.
Creatinine is a chemical byproduct molecule generated from muscle metabolism.
Measuring Creatinine is an accurate marker of your kidney function.
Higher than usual levels of Creatinine can be caused by a high intake of Creatinine supplements, animal protein and vigorous exercise however it can also mean that your kidneys are not functioning properly.
Lower Creatinine levels can usually be caused by a reduction in muscle mass, low protein diet. It can also be an indication that your kidneys are not functioning correctly.
The estimated glomerular filtration rate (eGFR) assesses how well the kidneys are working by estimating the amount of blood filtered through the kidneys. The glomeruli are tiny filters in the kidneys responsible for removing waste products. If these filters do not do their job properly, kidney function can be impaired. The eGFR calculation is an estimate of actual glomerular filtration rate, calculated using your age, gender, ethnicity, and serum creatinine levels.