This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionHuman Blood Test.jpg
English: Blood tests are a laboratory examination of blood, which is the main diagnostic test for most diseases. Based on the results of the blood test, a diagnosis is made and further treatment is prescribed. The study of blood plays a major role in medicine, sports and health care.
Русский: Исследование крови человека или ана́лиз кро́ви — лабораторное исследование крови, являющееся основной диагностикой при большинстве заболеваниях. На основе полученных результатов анализа крови ставится диагноз и назначается дальнейшее лечение. Изучение крови играет большую роль в медицине, спорте и здравоохранении.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse