Computed Tomography Technologist Practice Exam 2026 - Free CT Technologist Practice Questions and Study Guide

The normal range for blood platelet count is widely recognized as being between 150,000 and 400,000 platelets per microliter (mm³) of blood. This range is crucial for assessing blood clotting ability and maintaining hemostasis, as platelets play a pivotal role in blood clot formation and wound healing.

The lower limit of this range (150,000) reflects the minimum number of platelets required to reduce the risk of bleeding disorders, while the upper limit (400,000) helps ensure that there is not an excessive risk of clotting, which can lead to conditions such as thrombosis. This balance is essential for healthy physiological functioning.

In contrast, the other ranges provided either fall below the established normal limits or above them, making them less accurate for understanding standard health metrics related to platelet counts. Having a well-defined normal range allows healthcare professionals to better identify potential health issues and initiate appropriate action when platelet counts deviate significantly from these values.