On Saturday, 4.12.2021, I went to this laboratory for the procedure, to give an intravenous injection. I was extremely dissatisfied. The qualification level of the medical worker who performed the procedure is questionable. The gloves did not change during the procedure. The injection was accompanied by severe pain. The vein was pierced, the medicine flowed past the vein. There was a lump on his arm from the injection. By evening, a huge bruise with traces of an internal hematoma had formed on his arm. The painful condition in the elbow joint caused anxiety. I had to apply a resorbing ointment. I, my family, and I have not set foot in this laboratory anymore. Unfortunately.