Urine chemistry test

Instructions before collection

We do not recommend entry of patients/clients with clinical signs of disease (temperature, cough, signs of respiratory tract infection, etc.) to undergo this test.
We recommend hand disinfection prior to entry to the clinics/collection points.

PREPARATION FOR URINALYSIS

If you have chosen a chemical analysis of urine and urine sediment based on the first morning urine sample, do not forget to obtain a collection tube, either at the pharmacy or at any of our sampling points. If urine culture is tested, this tube must be sterile.
 

INSTRUCTIONS TO FOLLOW
It is recommended to follow the standard drinking regime prior to urine collection, to avoid coffee and alcohol (in the case of adult clients) that are diuretic and could dilute the urine as a result of its increased production. 24 hours prior to urine collection, sexual intercourse is not appropriate because the number of cellular particles and protein in the urine will increase.
Girls and women undergo this test outside their menstrual cycle, it is not recommended to collect urine samples 3 days before or 3 days after the cycle, when red blood cells that are not produced in the urinary tract may be present. The results can be evaluated as false positives.
 

HYGIENE
Immediately before the urine collection, it is important to thoroughly clean the genitourinary tract so that urine is not contaminated with mucus, bacteria or soap. When urinating, women and girls will separate their labia and wash their external genital organs with lukewarm water. Men and boys will pull back their foreskin and wash their penis. Your hands must be clean when doing so.
 

PROCEDURE
The medium (released after one third of the urine has been emptied) morning urine should be collected. Allow the first part of the urine to end in the toilet to ensure that bacteria from the outer urinary tract have been removed and cells peeled from the urethral meatus have been eliminated. The second (medium) part of the urine shows the actual state of the urinary tract. Urine should be collected directly into a 10 ml collection tube. The remaining urine is drained back into the toilet. Close the tube tightly and rinse with water. Carefully close with the test tube cap. Do not touch the bottom of the cap with your hands, and do not place its inner side on washbasins or bathtubs. Hold the cap of the test tube only around its outer perimeter to prevent any contamination of the collected urine by bacteria on your hands or furniture. Do not pour the urine from other containers, as it may get contaminated by bacteria or fibres attached to such containers. Always collect urine samples directly into the tube.
 

STORAGE AND TRANSPORT
The sample should be delivered for analysis within 4 hours after its collection and should be maintained at 4-8 °C to avoid the decomposition of cellular elements in the urine or the bacterial proliferation at higher temperatures. Biochemical quantitative urine assay A sample of spontaneous urination is collected for examination. A urine collection tube should be prepared in the evening before the test date. If you do not have an original urine collection tube, a 3dcl jar is sufficient. The jar must be clean, rinsed with boiling water and left to dry. Collect all of the urine in the jar after performing morning genitourinary tract hygiene, then pour approximately 10 ml of urine into the collection tube. You will obtain a mixed representative sample needed to determine creatinine, total protein, albumin levels or urine electrophoresis.
One common, clean urine collection tube, usually with a yellow cap, is sufficient for the chemical analysis of urine and urinary sediment. For culture testing, urine should be collected in a sterile tube, usually with a red cap. The use of empty bottles and other household urine collection containers is not appropriate due to the presence of bacteria and other components. One common, clean urine collection tube, usually with a yellow cap, is required for a quantitative biochemical assay. Proper preparation prior to the urine collection is a must for a correct result. A correct result is one of the conditions to reach the correct diagnosis.
 

SPECIFIC SITUATIONS
In order to obtain relevant answers to your questions through laboratory tests, it is important to accurately inform about the following facts before your blood test:
• regularly used medicines and supplements (ideally present a written list right before the blood test)
• infectious diseases you suffer from (HIV, hepatitis, mononucleosis...)
• contact with an infected person or presence in an infectious environment

Keywords: urine collection, sterile urine stream, preparation for urine collection, urine collection hygiene, medium urine stream, how to take a urine sample, how to collect urine into a test tube, urine collection material