Sterile Processing Technician Practice Exam 2025 - Free Sterile Processing Practice Questions and Study Guide

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What is the primary function of platelets in the blood?

Transport oxygen

Fight infection

Clot blood

The primary function of platelets is to clot blood, which is essential for preventing excessive bleeding when injuries occur. When a blood vessel is damaged, platelets rush to the site of injury, becoming activated and sticky. They adhere to the exposed tissue and each other, forming a temporary “platelet plug” that covers the wound. This process is part of hemostasis, which not only involves platelets but also clotting factors in the plasma that work together to create a stable blood clot.

The creation of this clot prevents further blood loss and begins the healing process. Platelets also release chemical signals that attract additional platelets and activate the clotting cascade, enhancing the body's ability to stop bleeding effectively. Overall, the role of platelets is crucial in maintaining hemostasis and supporting wound healing processes.

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Regulate body temperature

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