Urine infections are common types of bacterial infection, typically involving the lower urinary tract and including the bladder and urethra

Urinary tract infection is one of the most common reasons for females between the ages of 16 to 50 to visit their GP. It is estimated that 1 in 3 women will have a urinary tract infection before the age of 24 and half of all women will experience an infection in their life time.

The SELFCheck Urine Infection self-test is ideal for detecting urinary infections and prompting those with a positive result to seek prompt advice and treatment. Historically, urinary infections have been treated with broad spectrum antibiotics, but in recent years the use of antibiotics has declined and, instead, sufferers are advised to drink more water in order to flush the urinary tract of the bacteria. Antibiotics may still be used to increase the rate of recovery or, if the sufferer has any other medical conditions, that may be affected by the presence of a bacterial colonisation of the lower urinary tract. Screening tests are ideal tools for regular screening at home if the user suspects that they may have a persistent or recurrent infection, in which case the user may need to seek further medical advice or a course of antibiotics. Home test kits allow the user to screen for the presence/absence of chemicals that are excreted in the urine: if the lower urinary tract is infected there is strong probability that protein, nitrite and leucocyte esterase will be detected. These chemicals are not normally found in healthy individuals.

The SELFCheck Urine Infection self-test consists of two test strips, each able to monitor three test parameters: protein, nitrite and leucocyte esterase. The test strip is immersed in a fresh early morning urine sample ensuring that all three test pads are covered by the urine; the test strip is then removed from the sample and held vertically to drain excess urine. After a few minutes the result will appear in the form of visual colour changes to the three test pads.

The level of the abnormal chemicals present in the urine sample will generate varying degrees of colour changes - the greater the colour change the higher the levels of abnormality. SELFCheck home screening tests are ideal for detecting active bacterial infections and, of course, they can be used equally well to test whether or not the infection has passed. Once the infection has passed the three chemicals will no longer be excreted and will not be detected in the urine.

The benefit of carrying out a urine infection screening test in privacy ensures confidentiality as well as providing the necessary incentive needed to take further steps in terms of managing personal health and earlier consultation with a healthcare professional will facilitate earlier medical intervention should further action be needed.

The SELFCheck Urine Infection self-test test is easy to use, requiring only a small sample of fresh urine collected in a clean container (free of bleach/disinfectants) to perform the test and a visual result is available in less than 5 minutes.

A simple home test that checks for a urinary tract infection.

Sensitivity and specificity of the SELFCheck Urine Infection Test

The SELFCheck Urine Infection Test contains two test strips to be used on two different occasions. Each test strip detects three biomarkers of urine infection; nitrites, protein and leucocytes (white blood cells). The SELFCheck Urine Infection Test uses the same type of test strips used in most clinics and hospitals. All medical tests whether used in the hospital laboratory, clinic or at home will give a small proportion of false positive or false negative results and all doctors are aware of this. The performance of the SELFCheck Urine Infection test is equivalent to the tests used by your doctor.

Biomarker	Sensitivity (%)	Specificity (%)
Protein	91	91
Nitrites	85	99
Leucocytes	88	95